The downfall, imo of this device. They chose to use a HDD which will probably be a 4200 RMP drive. If you have used any Archos devices (which I have) it will make the UI feel sluggish as it tries to keep up with loading varoius elements. The other issue I have (and reason I love the Xoom) is the lack of USB and HDMI ports built in. Asus is going to sell you a dock for $100 bucks with those ports built in. I don't want to carry additional docks, just as I don't want to carry an Apple $40 dollar HDMI dongle. Built in for me, and for me personally, I won't buy a tablet with a HDD, simply eats to much battery, to slow and not worth saving a hundred bucks or so.
Xoom will see updates as Google releases them, no waiting for company xyz to update Touchwiz, Sense or whatever. The advantages of the built in ports, SD card slot and being basically the "Google tablet" more than justifies the $599 price. Yes the $799 seems a bit steep considering I won't have LTE for anohter year basically, but either way for the ports, SD and such it's worth it. The one missing thing I hope Xoom number 2 brings... IPS or better display, after all that is what a tablet is all about for me. I hope they upgrade that soon!