I’m casually learning C# these days, but I wish that my company took initiatives that would justify me learning it for them rather than for the next place I work. Still need Visual Studio for that I guess...
I have very mixed feelings about C# — on the one hand they have tried to clean up the C-language a bit... on the other You can't polish a turd.
On the one hand, Anders Hejlsberg (Turbo Pascal, & Delphi) shows definite influence on the design(for the good, IMO); on the other there are definite disappointments in regard to parallelism and packages/libraries/modules (I play in Ada for fun; I got spoiled by its nice parallelism and packaging features).
But MS shot themselves in the ass in Windows 8 by abandoning the DOTNET framework — it signals, IMO, that they're ready to abandon it (for the next big thing) leaving everyone who learned it (or really used it) high and dry.