Glad you like it :)
I'm not sure about what to do with all that, I'm taking so much fun from doing things like that and then going to something else ! :)
With the 3D model test, I don't have any problem using Gosu even if the character is made of more than 600 triangles so it's a good thing ! Even if I don't use vertex arrays because of the poor Ruby OpenGL implementation. It keeps running at 60 FPS on my poor computer.
I'm sure the mouse issue will be fixed soon, I can wait :)
And BTW, I converted another french guy to Gosu :
https://www.youtube.com/watch?v=A_JQvLT11Fc