T-Mobile will sell the Nokia Lumia 521 starting May 22; Nvidia's Q1 revenue beats expectations

Quick news from around the Web.

@FierceWireless: Qualcomm plan for 500 MHz of in-flight broadband spectrum wins initial FCC nod. Article | [email protected]

> Facebook Home is now available on HTC One and Samsung Galaxy S4. Article

> The Nokia Lumia 521 will go on sale in T-Mobile USA stores May 22. Article

> Huawei's first Windows Phone 8 smartphone, the W1, will be available at Walmart stores in the U.S later this month. Article

> AT&T Mobility is offering the LG Optimus G Pro for $200 on contract or $550 contract-free. Article

> Nvidia beats analyst expectations with first quarter revenue of $954.7 million. Article

> Nokia Siemens Networks is adding new features to its iSON solution. Release

> The Indian government is investigating Huawei and ZTE equipment. Article

> Rep. Zoe Lofgren (D-Calif.) proposed a new bill that would make it legal to unlock devices such as cell phones. Article

> Mozilla is trying to attract developers by offering a free Geeksphone Keon handset. Article

Mobile Content News

 > Google unveiled its long-anticipated YouTube paid channels pilot program. Article

> Apple's much-rumored streaming music service remains in limbo as a result of ongoing licensing negotiations with the major record labels. Article

> Flipboard is rolling out an overhauled version of its free social magazine application for Google's Android. Article

> Google is halting plans to introduce a physical credit card connected to its Google Wallet mobile commerce network, All Things D reports. Article

And finally… Do much-needed vacations actually bum us out? No way. Article