Unknown Sony VAIO tablet PC pays a visit to the FCC

A mysterious Sony VAIO tablet PC has made its way to the FCC. Judging from the picture, we can’t really tell what it is, but from the details we can see that it features built-in WiFi, and several model numbers such as PCG-31211L, PCG-31311L and PCG-312xxL. Don’t they sound like odd pants sizes to you? Details of the tablets such as the user manual and test setup pictures will be held confidential until January 20- though with CES 2011 coming up real soon, we probably won’t have to wait for long. In the meantime we can all play the guessing game- what do you think the VAIO tablet PC will contain, and what operating system do you think it will be running on? Chances are, it will most probably be Windows 7, but we can hope. A Sony VAIO Android tablet PC anyone?