Just installed the Gumdrop Droptech case on my 12 yo son's 7. I like it so much, I think I'll get one for mine! It fits perfect, and seems to offer more protection than any other case I've seen here. The built in screen protector does not seem to effect screen sensitivity much, if at all. I also like the fact that there are no moving parts. Hit the power button and go. Nothing to fold open, or hinges to fail!
Couldn't be happier with the case quality.