iPad. Pretty much the only thing I do on my computer I can't do on it is convert movies to put on it and photo storage. I love the iPad. For typical consumer computer use it can do just about everything.
I have zero confidence in Microsoft being able to compete. For them to be competitive they are going to have to have iPad quality hardware and software at a cheaper price and I just don't see that happening.
If Apple comes out with a $250 iPad mini it's just going to be game over.