your response to a bad review is to try to get apple to remove it? good luck with that. even if you could, which is doubtful, your response should be to figure out that guy's crash and fix it.
also, why on earth would you exclude the ipod touch? it has a camera, and therefore should be fully equipped to run your app. and i bet you are now going to state a reason for that which as lame as all your other "reasons."
i did much the same thing you did: i wrote an iphone app by myself, and did what i could to promote it. it was a modest hit, and ended up making me about 15 grand. but that was way back at the dawn of the app store, when the competition was less. my not terribly flashy app wouldn't stand a chance today.