Grass 5.0 beta to be released on Feb 1st.

GRASS 5.0 will be released on Febuary 1st, the Baylor University GRASS web site reports GRASS is a public-domain raster-based/vector Geographical Information System which processes images, models spatial data producing images. Source-code for Grass is provided, and it should be useful to environmentalists and people using the GPL'd Tiger Line Data set. There are quite a few demos of it on the web.