Sony introduced its latest entrant to the ultra mobile PC class of computers on Wednesday at the Consumer Electronics Show held in Las Vegas. Billed as the world’s lightest 8-inch notebook, the Vaio P Series Lifestyle PC is roughly the size of a business envelope and about as thin as a cell phone. However, unlike most systems in the UMPC category, Sony said the Vaio P is not a netbook PC. “I would call it a ‘mini-notebook’ because it looks and functions like a notebook,” said Bob O’Donnell, an analyst at IDC.
