In the category of ‘mobile computing that never made it’ and ‘things the iPad utterly killed’, the UMPC is (was?) a term for very small PCs that can do everything your average laptop or desktop can, but in a small form factor. Since PC makers figured the small size and ‘cutting edge’ technologies they put in them (200+ DPI screens, fingerprint readers, 3G) demanded a premium, UMPCs were often a $1200+ market, which also explains why they never caught on.
Now that the smoke on the mobile computing battlefield has cleared, though, one can pick through the remnants and find a good deal on what is interesting technology. It’s easy to be discouraged by all the lemons and genuinely weird micro-PCs, but I’ve also found a little gem in there. And that bulky, funny looking gem is the Vaio UX.