At last Processing is no longer beta, with the release of version one. It’s not a whole lot different, although the new version comes with a brand new color scheme. I always did prefer cyan to red anyway. The mac version acts a little more like a Mac program should, a self contained applet without all the extra files. This does make using libraries slightly more work. Processing 1 seems to run much smoother over all, and the compiler has been upgraded. I recompiled WikiWeb and it’s running better. There is a more detailed list of changes on the Processing site.