Speeder is currently away at the 2011 Campus Party. I don’t know too much about the event itself, but what is known right now is that Paddle Wars: Hit The Wall has its own arcade cabinet, and that it has gone through several revisions at this event alone. That version will be released once the event has concluded.
Current downloadable version: Beta 4
What’s in the arcade cabinet: Beta 5 revision 4
I’m not sure how long this link will last, but the live video of people playing the game (or just passing by) can be found
Edit: due to an unexpected stream failure, you can access the fixed stream here.