For those who've been dwelling on this planet long enough, you might just remember a category of mobile computers by the name of UMPCs. In particular, think Sony's VAIO UX and the elusive xpPhone. Alas, those Windows devices were -- and probably still are -- well ahead of their time no thanks to their battery life, bulkiness and sometimes cost; though for some bizarre reason, Fujitsu begs to differ. In fact, said company took one step further and released a hybrid device in Japan: the LOOX F-07C, a QWERTY slider phone that can switch between Symbian and Window