Hello,
SAGE is a CAS which included Maxima.
SAGE Days 2 will take place October 6-10, 2006.
Come and work very hard to build, using the best open source tools
available, what I hope will soon be the finest general purpose
mathematics software available:
http://modular.math.washington.edu/sage/days2/
- William Stein and David Joyner (organizers)