This conflates "just one device" with "make everything simpler", and sacrifices the first for the second, while it's the first I care about more. I don't mind having a Linux box with a filesystem and a command line -- I actually like that -- I just want to have all of my data available all the time, and all of my connectivity available all the time, and I'd prefer not to have to sync a bunch of devices and figure out which ones to take or leave when I'm out.

Right now I'd be happy with a device that had a dongle that you could connect DVI to, and accepted a bluetooth keyboard and mouse. Higher speed internet than my 3G is a nice-to-have, but not essential.

something like http://www.oqo.com/products/index.html perhaps?

Yes, exactly! Except with telephony and 3G support. :)

You can get it with a 3g datalink built in. Telephony, sadly, not yet.

Yeah, I noticed the 3G support after posting that. With 3G, though, Skype might be enough... I'm now seriously looking at this thing. Google produced some worrying posts and news articles, which may dissuade me, but if not, I may well buy one shortly.