Thats really cool, well done!

I use Gosu at Uni alot, I used it last year for my C++ assignment. This year everything has to be our own, but Ruby/Gosu has served very well for prototyping and/or level editors :D. I think I have converted a few people to use it during the next LD, although I've thought that before :(

learning languages as kids is fun, you dont mind grinding away at awful code, I got taught turbo pascal and made the worst possible coded blackjack.