iFrogz case. Luckily there is a lifetime warranty, because I already broke the back where it snaps together once. Flimsy thing. I also hate that I can't use a screen protector because it is too fitted. It makes it peel. I wish I could find another case I like for the sake of my screen.
I've just ordered these Uncommon (http://www.getuncommon.com) cases for my new iPhone 4 I hope the 5-15 day international shipping suggestion is right because I'm trying to resist switching from my 3 until the 4 is all cased up They've got a 15% off deal until Sunday - code is Verizon.
Left is my own photo in a Gallery case, right is one of their artist stock images customised & made into a Capsule case.
I'm looking for a new case since the original bumper scratched the metal on my iphone 4 quite badly. I'm nut sure if the Caze holds up as good as the original bumper does when it comes to protection in case u drop your phone.