This looks really cool:
http://www.appleinsider.com/articles/07/10/26/apple_patent_hints_at_tactile_multi_touch_keyboard.html I just hope Apple is serious about developing something like this, rather than sitting on a patent for fun (or incompetence).
In the meantime,
Axiotron is still selling what is still the one & only mac tablet (Apple is
rumored to be developing its own tablet mac).