Yes, the EAD renewal process has been delayed for some reasons and am in the same boat. I called up an IIO on 11-20-2002 @ 1.00EST. She told me that the cards would take atleast a month and I got to hang in there for a while. Until, you have the EAD approval notice or receipt, she told that it would be fine. Atleast, that's a comfort.
I also asked the status on my case, she told me that it's pending as they are processing Sept'01 cases. Technically, mine is an August case, but she told me that it's an October case. So, the waiting continues. I did not want to ask "How long ?", it would mean nothing from the IIO after all.