Just from playing around with it so far:
Having flash is really, really nice. It drags sometimes, but it's a hell of a lot better than a page dotted with ? boxes everywhere.
Man, I totally dig typing on this. All essential keys are present, and you don't have to dig through submenus for often-use punctuation marks, etc. There's a free app called Typewriter which uses Markdown for rich text.
I'm genuinely impressed with the UI. The word "intuitive" is way overused, but it really is. I'm swiping all over the place. The card system of layering your open apps on top of each other like a poker hand you flick through is awesome. It isn't nearly as bad as the reviews suggested - but then again, I did the patch/update, and it may have been a mess before. I wish Jobs would steal some of these ideas.
It's a bummer that the app catalog will never get fleshed out with apps by some of the big players like Netflix, but there is a decent amount of stuff out there already.
I don't even really want to hack it to Android, I'm finding WebOS so easy to use.
My screen has some light bleed in one corner, noticeable on the black boot screen but nowhere else (so far). Again, suspect build quality on these things, not a lot of polish. I was thinking about buying a case, but I'm not spending 1/4 of what I paid for the tablet on one. I have an old netbook sleeve, that'll do.
The speakers sound great, full and rich.
All in all, I'm very happy with it for $99. It's got a lot of nice features, and absolutely blows away any of those busted-ass Android 2.2/3 craptablets like Pandigital or Cruz. I can read my comics and ebooks on it, I can type out notes and research, and I can listen to internet radio while I am doing it. That's 90% of what I did on the iPad, so good enough for now.
The biggest problem, I think, was HP launching this thing at iPad prices with a limited app store. They should've launched it in the $350 price range, made some deals for expected apps like Netflix/Hulu/etc. to come pre-installed - and most of all, optimized the fucking OS before they shipped it. With the lack of hardware polish (seriously, the plastic back looks like a giant remote control), the buggy launch UI, and a dearth of apps, it is almost as if HP threw this thing out the door as quickly as possible knowing they were gonna shut it all down in a couple of months and take the write off.
