For the sake of comparison, I have two iPad 2 shots on here: the stray cat who came out to sit on my lap every day while I would read the news, and my younger cousin who thought my iPad was the coolest thing in the world.
iPhone 4S: a cool pleco at a local fish store, my nano tank, and my mothers old cat bathing the blind cat. (unfortunately, I couldn't get close enough to get a shot without zoom)
I actually like my iPad 2 shots better.