[skrebbel]

Good point.

The lock-in is mostly such that if you code in C# on Windows first, getting it to run on Mono later may be difficult, if you didn't pay close attention to what you were doing from the start. In this sense, it's rather different than e.g. Java.

But not too different from all that POSIX-specific Ruby and Python code out there, admittedly.

[X-Cubed]

Yeah, but that statement applies to pretty much any language really, not just C#.

If you code your Java app to expect to find documents in /home/<user>/ or link your Java app with binary libraries that are platform-specific, then you're going to have the same trouble.

Cross-platform support is rarely (if ever) a matter of just compiling into a new binary.