It was at a club at school, and i did it in a pair (except my 'partner only turned up one week out of ten...)
He is called hellbound. his info is up on my robots section on team payback robotics .com.
My teacher (a micromouse veteran) thinks that it will be the lightest mouse EVER. It varies from the school design as i filed down some wood and put a carbon fibre base instead of plywood. Also, the current lap time record for our mini school track is 8.68 secs, and in a test run we got 8.46!
When it is under test conditions, we will hopefully be able to have the fastes and lightest micromouse ever in the history of john hampden micromouse club!

I will have some pics and a video up sooooooon.

Watch this space!