I'm looking into experimenting with Tao but I am somewhat put-off by its dead-looking state. It hasn't been updated since 2008 and it looks like their website stopped functioning at roughly the same time.
Does anyone have any information on the current situation or know of its stability?
The project was superseded by OpenTK (http://www.opentk.com/)
From the FAQ:
"Will my Tao project run on OpenTK?
Starting with version 0.9.9-2, OpenTK is compatible with Tao.OpenGl, Tao.OpenAl and Tao.Platform.Windows.SimpleOpenGlControl. Simply replace your Tao.OpenGl, Tao.OpenAl and Tao.Platform.Windows references with OpenTK and OpenTK.Compatibility and your project will as before, while gaining advantage of all OpenTK features."