We already confirmed that RIM's BlackBerry PlayBook was deadly fast in use, but up until now, we've still been left to wonder what kind of silicon was powering it. According to a RIM representative that spoke to us just now on the CES show floor, a dual-core OMAP chip from Texas Instruments is doing the honors -- more specifically, it's the blisteringly fast 1GHz OMAP 4430. And now, you know.