Amid all of the CES hubbub, Facebook has invited the press to a special event at their Menlo Park headquarters in California next Tuesday, January 15th, 2013. The invitation teases “Come and see what we’re building”, implying a major product unveil. Could this be a significant revamp or redesign of the Facebook website? The long-rumoured Facebook Phone? Or could it simply be an ad-network? Only time will tell, and CE will be reporting on the event next week, which starts at 10:00 AM PT / 1:00 PM EST.