Probably the best way to show the amazing growing interest buzzing around the Mac and the iPhone, registration at the WWDC is closed as there is no more sits free. This is excellent news for Apple, as it shows the interest of developers for the iPhone/Mac platform; and also sends a clear message to competition.
One can even think different, and see in the recent move to extend the registration discount from April 25th till May 12th, a way to push developers and attendees to quickly register and get all sits sold out one month before the WWDC keynote to be delivered by Steve Jobs.
[translation by Linathael]