Who's really hurt by Antenna-Gate?

The iPhone 4 case industry, and most likely those consumers who want different cases.

How Apple's free bumpers affect the case industry | 9 to 5 Mac

Hard to compete with 'Free' - which is probably also the other reason why Apple added a cap of September 30th to the free bumpers offer - plus, the industry will most likely recover by them, selling cases for the redesigned iPod Touch.