OQO pocket-size Windows XP PC clever but could be better (USATODAY.com) USATODAY.com - I'm guessing the founders of a San Francisco start-up called OQO are bummed that Microsoft long ago snagged the name Pocket PC for its personal digital assistants. Because Pocket PC might be the ideal moniker for OQO's new model 01 "ultrapersonal computer"- uPC for short.