In the days leading up to CES, there are always a few unfortunate products that are prematurely outed by banners being put up over night. In this case, the victims are Samsung's upcoming Galaxy Note Pro and Galaxy Tab Pro, as shown by this massive ad at the South Hall of Las Vegas Convention Center. Stylus and SIM card slot aside, it's hard to tell what else the pictured Galaxy Note Pro has to offer. Its screen size is also a mystery here, though rumors are pointing at 12.2 inches, which would make it Samsung's largest mobile tablet to date. According to an earlier report by SamMobile, the Galaxy Tab Pro will come in two smaller sizes: 8.4 inches and 10.1 inches. All shall be revealed at Samsung's press conference in Las Vegas tomorrow afternoon, so stay tuned.