Below are comments coming from Richard Jones:

• The GCspy drivers have lagged behind JikesRVM development
• Richard has drivers for GenCopy, GenMS etc but for old versions
• It would be nice to have drivers for all the collectors in 2.9
• There's a new version of GCspy that needs integrating (see Cheadle et al, ISMM06); this also has support
  for high frequency events which might be interesting.
• Richard has some ideas for enhancements and using GCspy to control collector etc more in an experimental setting.

It would also be interesting to integrate the visualization with tuning fork:
http://domino.research.ibm.com/comm/research_projects.nsf/pages/metronome.tenedor.html