There are several places where protective bumpers always belong: cars, children's bowling parties, and electronics cases.
Rubbery corners are a trademark feature in Ballistic's cases for a variety of smartphone makes and models. In its most recent line for the iPhone 4 and 4S, the, the case-maker brings the silicone inserts to a fairly fitted design for Apple's iconic phone.
How does the $30 case fare? Pretty well, actually. Check out the photos, the pros, and the cons in my full review of the, which will be available to purchase very soon.