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UMPCs, Palmtops - in general all pocketable computers with a keyboard, mainly clamshell form factor (Pandora fits this scheme perfectly!).
I'm not an enthusiastic gamer though. Mainly focused on productivity with those tiny computers. See http://www.hermocom.com
My main productivity software tool is NoteCase Pro http://www.notecaseproplugins.com/about-ncp
It also runs on the Pandora!