If you're at all interested in an HTC Advantage, you can pre-order one on Amazon right now. If you don't remember, the Advantage is the not-quite-a-UMPC, not-quite-a-smartphone device that runs Windows Mobile 6.
If you've got $849.99, you can pre-order it now (the page says in stock soon) and get your mobile computing groove satisfied. It comes unlocked, so both T-Mobile and AT&T customers can get in on it. And if you're not keen on buying this before the actual reviews are in, you can make like 12% of Amazon shoppers who viewed the page and buy Harry Potter and the Deathly Hallows instead.