I would be astonished if there wasn't soon a FORTH running on it. And something like http://code.google.com/p/femtolisp/ might not be totally out of the question.
But who can say. The second Fortran compiler I used ran on an IBM 1800 (equivalent to the IBM 1130, but for process control) had something like 29 phases, and ran on a machine with a total of 4k 16-bit words.