I bought a TouchPad on Friday. The reviews are inaccurate in my opinion and I havent noticed any sluggishness, glitches or reboots. HP claims there is a system update for the GPU in the next week that will cure any sort of hiccups with the GUI.
I DO wish the back weren't slippery and glossy, but instead had the premium rubber-ish texture of a Palm Pre+ or Pre 2.
App-wise, it is sparse but the few there were specifically for the TouchPad are very well done. Angry Birds HD is free

All of my apps from my Pre installed automatically and are emulated without any issue. Some show up full screen, others do not.
The 50 gigs (for life!) of cloud storage is fantastic. Music and documents are now in the ether for me to download as I please.
The screen is equal to any other tablet and the speakers as small as they are sound better than most laptops I've used, especially my '11 MacBook Pro. The headphone jack is shielded and there is ZERO hiss or static. Music sounds fantastic with crisp highs and a sharp bass.
Since webOS is very easy to make apps for, I can see the tremendous potential in this. I look forward to a TouchPad2 which will be 100% HP designed and not the 'lost in transition' Palm/HP.