How about Voice Recognition and Command (Control), even Gesture control… and application?

That’s fabulous! can you give me a head start on this I mean where to start?

May be start form Hand gesture first…
A simple camera can do it… lil bit of image processing and we can control or type or input just through gesture… we can incorporate other flavors as it progress like Facial expression etc… get some inspiration from already existing Gesture Control utility.

thnks