Not at all surprised that it's going to be the "iPhone 5". Apple accepts that two-year contracts mean there's going to be an ebb and flow to their phone sales, and thus it's worth making as big a "bang" as possible for each new device, even at the expense of having buyers delay their purchase waiting on the new release.

But the iPad doesn't have a contract, and they'd prefer the average consumer not sit around waiting for the "new" iPad any more than they'd wait around for the "new" Macbook. Obviously some consumers are going to go to the Mac Rumors buying guide, but not many. By not hanging a big number on the brand, they mitigate the "I'll wait for N+1" mentality and hopefully spread out sales into the months post-release when their margins improve.