When I started looking to learn physical computing and researching what micro-controller I wanted to buy to start this process, it was the RAD project that put me over the edge in choosing Arduino.
Thank you for posting this video, it was nice to see the break down of the 'Black Magic' that goes into turning a RAD project into asm for the board.
Keep up the good work, hope to get over to RubyConf for next year.
salernos