Hey Paul! I can see some new use cases, but the fact that Apple has made this compatible with most iPhone/iPod apps tells me there will be a lot of overlap. In my own case, I use my iTouch for couchtop browsing (and sometimes light email and Twitter) so the iPad doesn't hold as much of an attraction right now. If there's some other killer app(s) that come to the platform, I may change my mind.
I don't know, I use my iTouch around the house a ton for browsing/twitter because it's easier than whipping out a laptop, but something that was a) much faster and b) had easier text input would get used a lot more for both of those things. Even if all the iPad did was instant on, fast rendering of web pages, and reasonable two-hand typing, it would be a game-changing experience. Sure there's the RDF, but I believe it really will be the best web browsing experience, just like iPhone was the best mobile browsing experience.
