Recently i was experimenting with Java and JMF… The result was the creation of a simple motion tracker… All this application does is to move it’s main window depending on the position of the user in space…
This app is just a test…However i decided to post it as it is quite enjoyable…
A really nice idea 
Does it also move up and down when you duck or climb… or jump?
Yup added that today!!!.. however in the version you see Y-axis movement was not implemented yet,
Ah, I see 
Very interesting concept
It is nice and hope you will improve this program that you’ve conceptualized with originally.