There have been many Chrome OS devices with touchscreens, but there haven't been pure tablets. You've always had an attached keyboard as a fallback -- until today, that is. Acer has unveiled the first Chrome OS tablet, the Chromebook Tab 10, and there's nary a keyboard to be found. The 9.7-inch slate is aimed at squarely at education, where the all-touch input and light weight (1.21 pounds) could make it a better fit for younger students. Appropriately, there's a bundled battery-free Wacom stylus that lets kids draw and take notes.