Microsoft's 2012 edition of Dream.Build.Play, the developer challenge targeted at indie devs and coders has branched out to include Windows Phone alongside the Xbox 360 platform (reports Pocket Gamer). Open to anyone over 14, you need to register by May 15th and have your game submitted by June 12th

From the website:

Design and develop a fun, original, playable game for Xbox 360 or for Windows Phone. Or create one of each! Keep our judging criteria in mind as you build your game. We’re looking for fun and excitement, innovation and originality — so do not hold yourself back!

As well as the chance to present your game at PAX2012 in Seattle, there is a prize fund of over $100,000 to be distributed around the winners. And of course you have a full game at the end of it you can take to the Windows Marketplace or the Xbox Live Arcade!