Shawn Blanc went out and spent his own money to review the HP TouchPad. This gist of his review:
I could not find one feature or function that was significant or compelling enough to take the TouchPad seriously compared to the iPad.
It's a shame, really. Just like when the Palm Prē came out, I had high hopes webOS would be a worthy contender against iOS. I obviously love iOS, but competition is what keeps the gears moving on all sides. Instead, HP's first major take on their webOS acquisition was a cheap feeling tablet with half-baked software.
If you want to see what I mean, read Shawn's aforelinked review.