GestureNav is an application that allows users to unify the physical and the digital world. It allows users to use the webcam to interact with their computer by mere use of hand gestures. It is a prototype of what is going to be the future of computing. By using gestures, files can be moved/transferred between folders/computers, windows can be switched, in future maybe a virtual air keyboard can be created and used very conveniently and many things seen in sci movies can be implemented. GestureNav opens users to a new world of possibilities and enters into a new era of computing.