Yes I know, I'm a little late weighing in on this topic, but after reading all the stuff on the iPad launch (including following the live-blogging of the event, sad, I know), I really really want one.
Nothing I've read so far has put me off. I don't care if it doesn't have flash - I don't watch movies online and I think it would be rather pleasant to be able to browse the net without any annoying ads flashing at me. I'm not really worried about the battery time - 10 hours is enough really.
I was a little worried about buying books through Apple's iBook store. The books from Apple sounded pricier than Amazon's store - $15 instead of $9.99. But then Amazon announced that they'd be producing a free Kindle for iPad app, so you could buy ebooks from Amazon and read them on your iPad. So that's one worry off the list.
So am I going to buy an Apple iPad? Yup - though my spouse is making me wait till the HP Slate comes out, just in case it's better. (Well you never know).