Almost made me want an iPhone 4 ... almost.
This gadget is deceptively simple.
The iPhone4 fits into a custom silicone holder that slides into the back of the holder.
That positions the camera directly behind the glass standard lens adapter.
A cutout on the side allows the addition of a directional mic plugged into the phone.
Add a battery ring-light and you have a quick, simple 720p video capture.
http://www.wantowle.com/