Recently, a guy called forgin has developed a beta version of an app called Hovering Controls.
This app literally lets you to control your device even without a single touch. Everything is controlled with simple gestures. All you need to have is proximity sensor which actually has almost every phone.
Unfortunately, the app is in beta version and has a lot of issues. However, you can still download it and rate it.
Currently in version 1.1.2 - Download
Original thread - XDA
Dev's profile - XDA