That's fairly close to what I want for work. A lot of the time, I'm just reading through docs, so I'd like to have a tablet form so I can stand up, walk around, or go sit on the sofa or wherever. If I need to write a quick email, I could just fold over the keyboard bit and bash it out.
The other choice that makes sense is one of those Transformer-y docking things, assuming they carve out a niche and proliferate. I need a full-featured PC/Mac browser for work at least.
The 3rd choice is the default 'just wait for Apple to put out something far better'.