Come to the Dark Side, says NASA...

Seriously though, this is an amazing idea for getting people interested in space exploration. I think this is a wonderful way to get kids excited about space, and hopefully get some of them to go into an engineering field. I'm going to follow this and see what games people make for it, here's hoping for a proper freeware space flight simulator with all the correct physics for gravity, structural stress, and atmospheres. (Public Sapphire thread)