Now that the Nintendo 3DS is announced using a parallax barrier display, we bet that many of you were hoping to see a 10-inch 3D tablet or laptop with a similar glasses-less display. Hell, we were... until we actually saw Sharp's prototype 10.6-inch parallax barrier display here at IFA in Berlin. Unfortunately, the panel at this larger size suffers from some very serious vertical shadows (check the video) unless you're right in the sweet spot and aligned with the barrier's precision slits at a distance of about 20 inches. Even then, it's very hard to maintain your position, and the 3D effect isn't all that dazzling. Fortunately, this 3D (640 x 768) panel also functions in 2D (1280 x 728) mode. Guess a 3D tablet that requires glasses isn't so crazy after all. Wait, yes it is.