Do Bumper cases offer any real protection to the iPhone besides scratch protection? I use screen protectors and side stickers and am considering adding a bumper style case for better grip. But I am also wondering if these minimalistic cases offer any real life protection against drops and bumps? The manufacturers are promoting their bumpers as drop protecting, but I would like to know about real experience from you guys. The bumpers I like are the Hula, Neo Hybryd EX and some of the cool looking aluminum ones.