With the Cortana digital assistant and a vibrant new interface, the OS is finally positioned to attract the users and developers it critically needs.
Even in beta, Microsoft's Cortana digital assistant has an impressive amount to say for itself. But is it enough to keep up?
Skype is getting even deeper integration with Windows Phone in version 8.1 including seamless voice call transfers and voice command video calls.
Microsoft's fortune was built on selling its software, but now it's giving Windows away for free in the war against Android.
The Lumia 930 is essentially the international variant of the recently released Nokia Icon, while the Lumia 630 and 635 are both mid-range Windows Phones.
One app, many devices.
Microsoft revealed the grand Windows Phone 8.1 update at Build 2014, and don't let the ".1" fool you: It's a doozy.
Better gaming via DirectX 12 isn't only for PCs and consoles, Qualcomm says
Cortana wants to know all about you so she can help you better, leveraging her buddies Bing and Foursquare, among others.
New screenshots show the settings and 'face' of Cortana, Microsoft's Siri challenger.