as part of the recent porting of GGhart to pyjamas, a massive performance gain can be had by using SVG Canvas. unfortunately, that meant porting GWTCanvas to pyjamas as well. this is also progressing well: http://pyjs.org/examples/gwtcanvas/
if anyone would like to help with the porting effort and with testing, that would be great: please contact pyjamas-...@groups.google.com. the IE engine uses VML, and the GWTCanvas library takes care of providing an SVG-like interface to VML (which is rather cool). l. -- http://mail.python.org/mailman/listinfo/python-list