That gives me a warm fuzzy. I'm hoping they'll put it in the magazine or one of their cool books. The magazine is where I got the soda bottle rocket design from two reunions ago. They have more cool projects than I have time (or money)!
I've got a lot of good feed back on the project at the Instructables Website, but I don't know that anyone has tried to build or improve on it. I was hoping someone would take off with it. I improved the code a bit, so if you come by to visit, bring your buggy and I'll upgrad it and give you a new battery (they only last a week or so).