Originally Posted by Carniphage
...Every Windows based tablet has performed badly in the marketplace because Microsoft failed to understand that a new form-factor needs a new interface...
While agree with your comment about the interface needing a major retooling (nearly a re-definition actually) to work well in a tablet form factor, in my opinion the ecosystem is a major component as well, just as, if not more, important than the actual device itself.
A tablet is an appliance, it is not a desktop PC, it's not a laptop. As such, the preconceived ways of using it are out the window. It's a whole new paradigm of device and ecosystem working together to produce an experience like none other. Now that's not to say it'll be the best experience for everyone, just that it will be a new experience.
The great thing is (for all the pundits out there), if you don't want to play in Job's playground you don't have to.