Tablet problems
I think the problems with existing tablet PCs were weight, battery, and an OS that was totally tailored towards a keyboard and a mouse.
Anyway, the notion that tablets will be forgotten next year seems a bit strange. Many people are already quite happy with smartphones for most of their computing/online needs and something like a smartphone or a PDA with a large screen makes a lot of sense to them. Having a full PC squeezed into a tablet with no keyboard may be the right thing for others but those just might be better off with a netbook indeed.
I think "real" tablets will either be simple ebook-readers or something like big smartphones running Android (or the iPhone OS). A tablet running Windows 7 is not much more than a netbook with no keyboard and has all the disadvantages of a PC with the added disadvantage of a missing keyboard.
