3 ideas First idea is a text to speech app like on windows. Multiple voices would be cool. Second is a platform game maker app. Just take a mario level and let people draw the hero/enemies/boss. The actual hit test is an invisible box to make sure people don't make super small enimies. If you wanted to get really into it you could let people draw the buttons. EDIT: New idea, a trading card game with online battles, updates could include new cards, and everyday you get three random new cards.