Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)
same that happens when they release a new macbook, imac, ipod nano, etc. they just call it by it's name(in this case) the iPad.
It's a smart move for apple to do this, I cant wait till they drop the number on the iPhones