Nintendo's Wii U controller is a gaming display, video conference device, and yes, a stylus-toting tablet, but no such tool has been announced for those other consoles, so PS3 and Xbox 360 owners who want to get their sketch on will have to turn to THQ's new uDraw GameTablet instead. Tablets for both gaming systems were announced last month, and today we had a chance to paint on the big (HD) screen at E3. Though the drawing surface feels just as roomy as the Wii version, the tablets are noticeably sma