"In this innovative industry, mobile designers need some time to explore how to design more creative and original interfaces. Add to that Apple’s frustrating rejection of apps that “think outside the box,” it is no surprise that experimental UI and UX designs such as Clear and Rise took a while to see the light of day. But they are here now. And while they might be quite extreme and focused on high-brow users and early adopters, they show us the great creative potential of gesture-driven interfaces".

http://uxdesign.smashingmagazine.com/2013/05/24/gesture-driven-interface/