I don't understand why do all (and I mean ALL) screenshots have to be on an Apple device? Are you selling iPads or iPhones? Shouldn't your focus be on your product and not on Apple's product?

Perhaps in the beginning somebody could be fooled that if you like awesome Apple products your product will be awesome as well. Or that because iThingies near perfection your service is also going to be highly polished. Obviously, that is more often false than true - you're a damn startup and the products on the screenshots are sometimes little more than MVPs (not in this case, I guess).

What is wrong with just a screenshot?