I have seen many iPad cases that says it will protect your iPad from scratches and drops. But how much protection are they really promising? G-Form Case for iPad is the ultimate I would say, it can protect your iPad screen from a 8lb bowling ball dropped from 3 feets up.
If you are someone who play rough or might be bring your iPad to rough places, this might be the case for you. It is only available for pre-order now, at cost USD$59.95, more details at G-Form.
Check out the demo video from them: