I recently bought this case for $29:
Case-Mate Motorola Droid Naked Case (Case-Mate CM010336), Motorola Cases, Holsters, Skins, and Accessories
Seemed like a really cool concept at first - screen protector built into the top half of the case. In addition to protecting the screen, I also figured it would help keep the top half on and more sturdy.
As other reviewers have posted, it makes it extremely difficult to access any of the touch screen around the edges, as it is bevelled. For example, typiing 'P' is ridiculously hard, as is using the back button.
If the case was $10 off of Ebay, I would have just dealt with it, but when you buy a $30 case from Casemate, you expect it to work well. I just returned it today.
Every other casemate case that I've owned has been top-notch, but STAY AWAY FROM THIS CASE!