Starting January 31, Microsoft's Windows Phone 30 to Launch challenge will see developers building creative and beautiful apps in just 30 days. Four winners of the competition will receive an awesome entertainment package prize sporting a 3D HDTV and Kinect.

Unfortunately, before you get all excited and prepare your best app ideas, this competition is open for U.S. residents only. The challenge will begin on January 31st when the official rules will be published. Head on over to the 30 to Launch website to sign up and be sure to check out app development events.

Source: 30 to Launch