The recent EB3 retrogression began on July 1, 2005 when the Department of State announced in the June 2005 visa bulletin that they had ran out of visa numbers for Fiscal 2005. Since the visa bulletin takes effect only starting the following month, it was possible to file I-485 under EB3 as long as it was received by the service center by June 30, 2005.
Visa numbers for Fiscal 2006 will become available again on October 1, 2005, so assuming no additional retrogression, one would be able to file I-485 starting this October. The exact visa availability would be announced in September when the Department of State issues the monthly visa bulletin for October.
Ranarules: I wonder why your applications were processed so quickly... much quicker than the normal processing time stated on their website, right? Another friend who filed at the CSC got his EAD approved last week, too. I hope I will get mine soon!