(Update: video added) Sony has unveiled two new tablets running Android 3.0 (Honeycomb) to take on Appleís iPad. The first is the formal unveiling of the previously leaked 9.4-inch Sony S1 with its distinctive curved top, shaped like a magazine that has been folded open. It is powered by the Nvidia Tegra 2 and features Sony's customized ìQuick and Smoothî panel-based UI and its new ìSwiftî mobile Web browser.