There isn’t much in the way of significant changes except the inclusion of the cameras, the spec bump to A5 and (as rumored) 512MB of RAM, and of course the generally thinner profile. One thing: the speakers are laughably small, though probably no smaller than the competition. One of these days a tablet will come along that doesn’t make your music sound like it’s at the bottom of a well, but until then, headphones are your friend.