We are excited because this is going to be the first robotic competition at a machine learning conference: you send your code - we run it on our robots.
Or, you can get a robot yourself through the Kickstarter run by our non-profit foundation:
https://www.kickstarter.com/projects/163162211/duckietown-a-playful-road-to-learning-robotics-and?ref=3cul9g
AMA in the comments.