Robert has been leading the maxima project for many years. Maxima is a very useful program for Calculus specially for symbolic computations and is widely used in Spain Universities for Calculus 101. I think maxima and wxmaxima are such great tools that some money should be provided for such projects (perhaps from the Universities).Anyone just trying to put my two cents.
http://article.gmane.org/gmane.comp.mathematics.maxima.general/47973