AT&T is sponsoring another Mobile App Hackathon this Saturday. Parking are plenty, and the event is free among other things.
Here is the details:
Saturday, October 15, 2011 from 10:00 AM to 8:00 PM (PT)
F5 Networks HQ
401 Elliott Avenue West
Seattle, WA 98119
I will be there. If you have question, you can contact Alex (Cc'd).