Re:How cross-platform (Score 2, Informative)

I do c# development at work (largely for the windows.forms gui code, most server side is c++).

I took a console application that used network sockets, timers, and was completely multithreaded that I had compiled using microsoft's c# compiler, and copied it to a linux server (no recompile).

Fired up mono ... it worked flawlessly, first time. I was impressed.