You can shove your iPhone up your UMPC

I want one of these.
Ok, so it doesn't appear to have HSDPA -- unlike my current mobile phone -- but it's running a proper OS on a tiny machine that you can then plug into a keyboard, screen, mouse. It's a better spec. than my laptop but would fit in an albeit large pocket.
You'll probably need large pockets to pay for it, as previous models in this range have been c. £1,000, but since Sony have given this UMPC the same model name as a camcorder, it ain't easy to find the price on the web.