… and you'd also have to undo the surface API work in Maliit Keyboard ;-)
It's a WeTab (sold as ExoPC outside of Europe). And yep, it does run native Ubuntu.
Quick walk-through of Maliit Arabic keyboard support in Nokia N9
Chinese is available in Asian markets with PR1.1 version. An open source Japanese keyboard is available, google for maliit-plugin-jp. Support for more languages will come