Microsoft Research: Singularity

Yesterday I run over a cool OS done by the guys at Microsoft Research. It is called "Singularity" and written in C# (99% of it).

More about it is found here: http://research.microsoft.com/os/singularity.

A video where Jim Laurus and Galen Hunt explain their research OS is found at channel 9: http://channel9.msdn.com/ShowPost.aspx?PostID=68302