I tried out the Ruby bindings for SFML the other day and they work very well. The language seems rather easy to use to!
My only concern is that, judging by what I've read, there's no way to hide the Ruby source code. I'd rather not have someone tooling around the source for the games I make.
So does anyone know if there is a way to obfuscate, encrypt, or hide the source for the Ruby files?