FEATURES:
  * direct threaded code
  * vmgen (top of stack caching, profiling, disassembling, superinstructions)
  * fast generic calling of C functions
  * configurable class-method cache
  * non-optimizing VM has small size
  * high level intermediary language (LGram)
  * continous instance memory layout

FUTURE FEATURES:
  * compiler written in Ruby
    (except last step in compilation: generation of instructions)
  * dynamic recompilation