Up until now, the most we'd heard about the next rumored update to Microsoft's Windows Phone OS centered on two features: Cortana, the company's Siri-like digital assistant, and Action Center, its native notification center. Today, however, we have a clearer idea of where Windows Phone 8.1 could be headed thanks to aReddit user who's allegedly gained access to the new SDK as part of Microsoft's developer preview program.

http://www.engadget.com/2014/02/11/l...veloper-build/