It looks like X# might just see the light of day afterall, as the foundation of a even more ambitious research language from Microsoft.  This article actually gets most of all the facts right.  Except it doesn't mention my brilliance anywhere. 

X# == Xen == C Omega == X Omega

If you have a good idea for a new c# based language, just make up an appropriate sounding name and add it to the list!

Matt