It's taken its sweet time to leap over that Rising Sun, but Microsoft's Surface RT tablet has finally arrived in Japan. Priced at 57,800 yen ($600), it's launching today in collaboration with Ghost In the Shell series, Arise, where the Surface RT will apparently be making some cameo appearances, with a view to referencing its touch interface. If you're interested in seeing how Microsoft's lightweight tablet might look in the robotic future, we've added a concept sketch after the bre