That's awesome!

I played The Incredible Machine
soooo much when I was a kid! I had a friend that would come over a lot and we would use the free play mode to just make crazy pointless machines. I've considered making a game like it on several occasions to fill that creative tinkering gap it left.
Actually come to think of it, I was talking with somebody at GDC that told me about you guys. Though the details were sort of vague and that whole week was sort of a blur.