Store between December 20, 2012 through February 28, 2013 and qualify for the following rewards: http://rj.cx/gen_app_ultimate_unity 1. A store registration reimbursement* AND a copy of Halo 4 for Xbox 360! 2. A chance to win one of 12 Xbox 360 consoles with Kinect. The more apps you enter, the more chances you'll have to win. 3. The Grand Prize: Three devs with the best apps will win an ultimate backstage pass to Microsoft Studios and spend the day with the Windows 8 Games Studios team—makers of Windows 8, Windows Phone 8 and XBOX-enabled games!