Just 13 days after it launched to the public, the iPad is the subject of the latest Silicon Valley developers' unconference event. At 5 PM this evening iPadDevCamp kicked off at the PayPal/eBay offices in San Jose. The photo above of developers waiting in line to enter was posted to Twitter by Portland, Oregon based iPhone (and now iPad) push notification service Urban Airship.

Build some cool apps in there, folks!