Microsoft owes the Internal Revenue Service (IRS) $28.9 billion in back taxes, not including penalties and interest, at least according to the tax authority. The tech giant has revealed in a filing with the Securities and Exchange Commission that it received a series of Notices of Proposed Adjustment (NOPAs) from the IRS for the tax years 2004 to 2013. In its filing, it said that it's been working with the IRS for nearly a decade to address the authority's questions about how it distributed its profits among countries and jurisdictions, and this is the agency's decision after a lengthy investigation. 

To be exact, the IRS audit centered around a practice known as "transfer pricing," which legally allowed companies to allocate profits and expenses between their operations in different regions. Microsoft explained that a lot of large multinational corporations practice this cost-sharing scheme to reflect "the global nature of their business." In its case, its subsidiaries shared in the costs of developing some IPs, which means that they're also entitled to the related profits. As AP notes, though, critics of the regulation argue that companies frequently use it to minimize the taxes they have to pay by reporting lower profits in high tax countries, and vice versa. 

Microsoft explained that the issues raised by the IRS are only relevant to those aforementioned years, because it has since changed its corporate structure and practices. Nevertheless, the IRS believes Microsoft owes $28.9 billion in back taxes. The tech giant disagrees, as expected, and said that newer tax laws could reduce the back taxes it owes from this particular audit by $10 billion. Based on its plan of action shared with the SEC, the company intends to contest the decision to the best of its ability: Microsoft said that it will pursue an appeal within the IRS, which typically takes years to complete, and will even "contest any unresolved issues through the courts" if needed. 

Uber Eats is making it easier to fulfill your cravings, even if they're impossible to get from a single store or restaurant. The food delivery service has introduced a multi-store ordering feature, which lets you purchase food from two different merchants at the same time without having to pay additional delivery fees. It could be the answer for when your taste buds are looking for Vietnamese pho and ice cream, or if you and your housemate couldn't decide on whether to get tacos or pizza. 

Previously, Uber Eats could only ask if you want to bundle your order with items from convenience stores like 7-11 during the checkout process. The company said that after testing out that feature, it received feedback from consumers asking for the capability to build one order from two different merchants instead. To bundle two orders, start by adding items from one store's menu to your cart and then tapping "bundle another store" at the bottom of the screen. You can then add items from the second store's selection before you check out. 

An Uber Eats spokesperson told us that the service will recommend nearby merchants whose orders can be conveniently bundled with the first place you choose, most likely so you can still get your food while it's still fresh and hot. It also won't limit the stores it recommends based on what kind of place they are, so you can add items from a second restaurant, a convenience store or even a merchant that sells liquor. 

If you have several Google Nest speakers, Chromecast and smart displays, you can add each of them to several different groups in the Google Home app again. The company implemented changes last month, which would allow certain devices to be added to only one speaker group at a time in response to Sonos' patent lawsuit. This development, announced by the Nest team, undoes that change. If you'll recall, Sonos sued the company back in 2020, accusing it of infringing on several patents it holds, including ones related to managing groups of speakers.

In May, a California federal jury determined that Google had infringed on Sonos' intellectual property and ordered the tech giant to pay a $32.5 million fine. However, US District Judge William Alsup has just tossed out the verdict after finding that Sonos' patents were unenforceable. Alsup ruled that Sonos had improperly linked its multi-room audio patents to a 2006 patent application, which didn't disclose the actual invention. He also concluded that Sonos didn't file applications for the patents involved in the lawsuit until 2019, years after Google presented it with a plan to use multi-room audio technology while exploring a collaboration.

Sonos told Reuters that the judge's ruling was "wrong on both the facts and law" and that it intends to lodge an appeal. Google has decided to roll back its previous changes despite Sonos' plan, though, which means you "will no longer run into an error when trying to add a device to additional groups." The update has already started rolling out and is currently making its way to the Home app on Android. Google says the change is also "coming soon" to the Home app on iOS devices.

Duolingo is launching its new music course sometime this fall. The educational tech company first announced that it was gearing up to add music lessons to its repertoire back in September, promising "hundreds of bite-sized lessons" that can teach you music with the help of over 200 tunes. Duolingo, of course, has turned music learning into a gamified experience, dividing lessons into levels you have to complete and docking points (or hearts) whenever you enter an incorrect answer. 

You'll start by having to familiarize yourself with the sounds of the C and D notes of C major using a digital piano. Duolingo will have you matching the sounds of each note with their placement on a staff, so you'd know what they sound like and could spot them on a music sheet by the time you're done. You'll move on to the next notes in subsequent lessons, but before you can proceed, Duolingo will test you on what you've learned so far by having you play familiar ditties like Mary Had a Little Lamb. Don't worry — you only have to follow the notes scrolling on screen, but it could still be plenty challenging for the musically inept, like yours truly. If the first lessons are a bit too basic for you, though, you can skip ahead to the more advanced stages of the course. 

Duolingo

In addition to creating a brand new music course, Duolingo has also updated its math curriculum to help you gain "advanced real-world math skills," such as the ability to quickly calculate tips and hourly wage. "While Duolingo is known for language, we’re expanding to math and music because these are subjects that people often find intimidating," Karen Chow, Senior Learning Scientist for Duolingo Music, told Engadget. "You'll hear people say 'Oh I'm tone deaf' or 'I'm just not a math person.' We want to show people that learning these different subjects is possible and it can actually be a lot of fun!"

You can now sign up for the music course waitlist, if you want to start learning as soon as it becomes available. Initially, Duolingo music will only be available in English and Spanish on iOS devices, but the company says it's "hoping to bring the course to more learners very soon."

Duolingo

Apple upgraded the second-generation AirPods Pro in September by giving them a few improvements and by swapping out their charging case's Lightning port with USB-C. The refreshed model only became available for purchase on September 22, but you can now get it for 24 percent off retail. Apple is currently selling the second-generation AirPods Pro with a USB-C MagSafe charging case for $189, which is $60 cheaper than what you'd pay for them if you're buying them at full price. That is, of course, without AppleCare+ — if you want to get the earbuds with Apple's extended warranty, you'd have to pay $23 more. 

In addition to giving the AirPods Pro's charging case a USB-C connector, Apple has also upgraded the model's water resistance and added dust protection for both the earbuds and their casing. With iOS 17, the improved AirPods will be able to "dynamically blend" their active noise cancellation (ANC) and transparency mode capabilities based on your environment. Their Personalized Volume feature uses machine learnings to predict your desired listening level, depending on your activity. Plus, their Conversation Awareness feature can lower the volume when you start speaking, so you don't have to do anything if you do talk to someone. Finally, when the tech giant's Vision Pro mixed reality headset launches next year, you'll be able to enjoy low-latency lossless audio when you pair the earbuds with it. 

If you want a pair that's even more affordable, however, you can get the second-generation Apple AirPods for $89 instead. The model isn't quite as feature-rich as its Pro counterpart, and it doesn't come with silicone tips to create an acoustic seal. But it's still a great option if you use an iPhone or plan to pair it with Apple's other devices. 

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Game Pass subscribers will have to wait a bit more before they're able to play Diablo IV and Call of Duty: Modern Warfare III on the service. Activision Blizzard has announced on X, formerly Twitter, that it doesn't have plans to add those games — among other upcoming and recent releases — to the service anytime this year. Based on its explanation, it's waiting for Microsoft's acquisition of the company to be finalized, which is expected to happen within this month. 

"As we continue to work toward regulatory approval of the Microsoft deal, we've been getting some questions whether our upcoming and recently launched games will be available via Game Pass," the gaming giant wrote. It added that it expects to start working with Xbox and add its titles to the Game Pass service once the deal closes, and that the process would begin "sometime in the course of next year."

Microsoft first announced that it was buying Activision Blizzard for $68.7 billion in early 2022 and that it was hoping to close the deal by June 2023. However, several regulators moved to block the purchase over concerns that it would harm competition and stifle innovation. The European Commission rubberstamped the acquisition in May with the condition that Microsoft offers its games on other cloud gaming services. Meanwhile, the UK's Competition and Markets Authority blocked the deal until the companies promised to sell "cloud streaming rights for all current and new Activision Blizzard PC and console games released over the next 15 years to Ubisoft Entertainment... in perpetuity." In the US, courts denied the Federal Trade Commission's (FTC) request to issue an injunction on the purchase. However, the FTC announced in September that it plans to restart its in-house trial against the acquisition. 

Google has successfully convinced a California federal judge that it did not infringe on Sonos' multi-room audio patents. As Reuters reports, US District Judge William Alsup has thrown out a previous verdict that slapped the tech giant with a $32.5 million fine for infringing on patents held by Sonos related to managing groups of speakers. 

The judge explained that Sonos' patents for the lawsuit "ostensibly descended from [a] 2006 provisional application." However, the company apparently didn't file the applications for the patents in question until 2019, and it didn't roll out the technology to its own products until 2020. That's years after Google, in 2014, presented Sonos with a plan to use multi-room audio technology while exploring a collaboration. 

Since Sonos connected its patents to a 2006 provisional application, they appeared to have predated Google's products. But Judge Alsup said that the early application failed to disclose the actual invention, and that in 2019, Sonos amended the specification of its patent application to insert new matter. "This was not a case of an inventor leading the industry to something new," Alsup wrote in his decision. "This was a case of the industry leading with something new and, only then, an inventor coming out of the woodwork to say that he had come up with the idea first — wringing fresh claims to read on a competitor’s products from an ancient application."

Sonos sued Google in federal court in early 2020, accusing it of violating five of its speaker patents. Patrick Spence, the company's CEO, said back then that Google had been "blatantly and knowingly" duping Sonos tech and refusing to cooperate on a "mutually beneficial solution." Earlier this year, a California federal jury had ruled that Google did infringe on a patent Sonos holds and ordered the tech giant to pay $32.5 million in penalty. Alsup also served as the judge for those proceedings, but in his newer decision, he said "trial brought to light what happened here."

In a statement, a Sonos spokesperson told Reuters that the new ruling was "wrong on both the facts and the law." Based on that, Sonos is clearly not going to accept the newer verdict: The spokesperson said that the company is planning to appeal the decision. 

Late last year, Amazon Luna and Ubisoft deepened their partnership by allowing subscribers to stream the developer's games that they already own on PC. So it doesn't really come as a surprise that Amazon has chosen to team up with Ubisoft to debut a new feature on its cloud gaming service: The capability to buy games from the platform and not just stream them. Subscribers can now purchase select Ubisoft games from the developer's portal on Luna, and the selection includes several Assassin's Creed titles, the Far Cry games, Child of Light and Watch Dogs. 

Customers will be able to purchase any game they want from within Luna, using their Amazon account and as long as their Ubisoft account is linked. The e-commerce giant says subscribers will own the license for any game they buy, and they'll be able to play either on Luna-enabled devices or on a computer if they download the title for offline play via the Ubisoft Connect PC launcher. The list of Luna-enabled devices include Fire TV devices, Chromebooks and phones.

All the titles a customer buys will show up in their Luna library, and all their in-game purchases will sync to their Ubisoft account regardless of where they pay for them. Of course, they'll only be able to stream the games on Luna as long as they're a subscriber or a Prime member, but they're not going to lose access to those titles completely if they stop paying for the service. 

As 9to5Google notes, this move gives Luna shades of Google Stadia, which was the only cloud gaming platform that allowed users to purchase games when it was still around. Unfortunately, Amazon didn't say whether it has plans to expand game purchases and to sell titles from other developers. 

ChatGPT might be powered by homegrown chips in the future, if OpenAI does indeed decide to make its own. According to Reuters, the company is currently exploring the possibility of making its own artificial intelligence chips and has even evaluated a potential acquisition. OpenAI CEO Sam Altman previously blamed GPU shortages for users' concerns regarding the company API's speed and reliability, so he reportedly made acquiring more AI chips a priority. 

In addition to being able to address GPU shortages, OpenAI using its own chips could make costs associated with running its products more manageable. Based on an analysis by Stacy Rasgon from Bernstein Research, each ChatGPT query costs the company around 4 cents. The service reached 100 million monthly users in its first two months, which translates to millions of queries a day, though it did lose users for the first time in July. Rasgon said that if ChatGPT queries reach a tenth of what Google gets, then it would initially need $48.1 billion worth of GPUs and would spend $16 billion a year on chips going forward. 

At the moment, NVIDIA controls the market for chips meant for AI applications — the Microsoft supercomputer OpenAI used to develop its technology, for instance, uses 10,000 NVIDIA GPUs. That's why other companies — bigger players in the tech industry — have chosen to start developing their own. Microsoft, OpenAI's biggest backer, has been working on an AI chip of its own since 2019, according to The Information. The product is codenamed Athena, and OpenAI has reportedly been testing the technology. 

OpenAI has yet to decide whether to push through with its plans, Reuters says. And even if it does choose to move forward, it could take years before it can start using it own chips to power its products. 

When Activision announced Call of Duty: Warzone Mobile in 2022, the developer said it was planning to release the game sometime this year, shortly after Call of Duty: Modern Warfare II became available. Now, Activision has published a trailer for the mobile title, with the revelation that it's coming out sometime in the spring of 2024 instead. It has no specific launch date yet, but those interested can already pre-order from Google Play or the App Store. 

Warzone Mobile is a battle royale experience, which will put up to 120 players on a single map. The matches' operators, weapons, locations and combat are supposed to be familiar to current Warzone fans. It will also share a Battle Pass, as well as feature cross-progression, with Modern Warfare II and Warzone 2.0. While the game won't be widely available until 2024, fans in Australia, Chile, Norway and Sweden have been able to play it since earlier this year. This "limited release" version gives Activision a way to test the game with a wider audience than it can with its Closed Alpha, so it can find and fix more bugs, stress test matches and collect as much feedback as possible on gameplay and different elements of the title. 

In addition to announcing a new release date window for Warzone Mobile, Activision has also revealed that the game will come with access to Rebirth Island from day one. The fan favorite Resurgence mode map will be making its debut on mobile and has apparently been "painstakingly and specially built" for this game. 

As for those waiting for Modern Warfare III, Raven Software has confirmed at the COD Next event that players will be able to slide cancel in the game — a mechanic that was notably absent from Modern Warfare II. Take note, though, that while the mechanic is coming back, it will no longer reset Tactical Sprint.