Dropchord - (by Double Fine Productions, Inc.)

Dropchord, a "music-driven score challenge game," is in development for iOS devices and PCs with the gesture-based Leap Motion Controller...

Dropchord is scheduled for release "later this year" on Windows PC, Mac and iOS. The game will be on display March 9-11 at Leap Motion's South by Southwest booth, and a playable demo will be shown in Double Fine's PAX East booth later this month. Leap Motion announced last week that the Leap Motion Controller will be released in May.