Fist impressions are pretty good (though I kind of miss not having a physical back button).
Upgraded to WebOS 3.02, updated a few Apps, imported photos from Facebook and FLIKR, set up email, tried to change search engine to BING (I know) but wasn't in list - may be available dynamically?, tried a few flash sites (great), installed a load of apps and games (pretty good though maybe a little early to fully comment). Played with exhibition mode (sweet - any app can expose itself as a homescreen app, EG calendar,photo slideshow etc) and on the strength of this ordered an induction stand (half price).
Do I still want a Win8 tablet? Yes.
Do I want it quite so much? Nope.
NB I had resisted the iPad urge but just wasn't able to resist a Touchpad at this price (GBP89.00)