A lot of people seem upset that you can't tether the iPad to your iPhone, which I gather means you can't use your iPhone to provide an internet connection for your iPad if you're somewhere without WiFi.
I have no idea of the technical issues, but that does seem like a mistake for Apple -- and a weird strategic deviation for Jobs.
I still think these tablets are all really poorly designed, as devices, but that doesn't mean they're poorly designed as products. On the other hand, I also think this is a market segment where every eighteen months will make the last newest model painfully obsolete -- moreso than with most computer gunk -- and so even if I wanted one, the price would have to drop a bunch first. Like under $100.