I believe you're thinking of "MID", not "UMPC". None of the self-branded UMPCs I know of are pocket sized. They're more like medium paper pad size (comparable to an 8x5 pad of paper, not a 8.5x11 pad of paper). Some of them have keyboards that slide out (Sony Vaio UX, OQO, GigaBit), or split side keyboards (Samsung O2, PepperPad), but I don't recall any of them really being pocketable.

Then last year (the year after the UMPC category was announced by Intel), Intel announced the MID category, which is basically a smaller cousin to the UMPC.

UMPCportal.com mixes the two definitions, but that's partly because they list products that are "ultra portable", but the product didn't call itself an UMPC. For example, the N800 and N810 ... whose features fit a MID much more closely than an UMPC. But the N800 existed before the MID concept was out there. At this point, I think UMPC portal is actually mixing in both concepts on their site.

The only reason I don't like calling the mini-laptop devices "UMPC"s is that UMPCs are tablets, not laptops :-) I think the only reason the EeePC is stuck into this category is that it's the same overall footprint size... which means that its cousins (Cloudbook, HP 2133, etc.) are getting shoved into the same category as well.


So, anyway, the title that should be reserved for pocketable is "MID", not "UMPC" :-)