@DF: - Can user replace the battery or it remains to be the sealed type that can't be changed in the field?
- personally, I would want to make sure that it can do USB host(without the dock); without this I don't think you can attach mouse/fold-away keyboard or any other interest stuff on the go?

- in my book, portable h/d(I think that what is being used) is a bad idea.

I have an older generation of Archo( A605 to be exact) with docks, remote, the complete works. What I hate(or afraid) most is whenever it is in my hand or pocket, at any moment I would drop the thing and the internal h/d would crash/die with it for good This is more important factor if you are considering this type of device as your PC replacement

cheers,