Interesting analysis of the iPad competitors from Charles Arthur.

I guess the key point for me is whether you think of a tablet as a small and portable alternative to a laptop/netbook, or a large and powerful alternative to a smartphone.

Given the power of the iPhone 4 (which has just blown me away with the Epic Citadel app- a demonstration of the Unreal 3D engine), I'm just not sure how much demand/need there is for a bigger smartphone. Especially if you're talking about something that's going to be carried around in a bag anyway.