I like my Ipod touch, for the fact its small and functional - use it on alarm stereo dock, in car through stereo, while on holiday if hotel got wifi for emails etc, etc, etc.
The Ipad wouldn't replace my Ipod for those uses due to its size. And it wouldn't replace my Laptop due to its lack of functions. Plus to make the Ipad work you'll be tied to Apple programs, for a fee, which I bet you'd have to connect it to a proper PC to download...
But a plus side, it'll give us people to have a sly dig at, while they think they looking good but really looking ridiculous poolside etc.
oh, and I heard - its a phone.... trigger happy tv sized!
Pointless.