Crazy Monkey,
My I-485 receipt date was Oct 2002.
Case transfered to Seattle in Oct 2004.
Had interview in Feb 2005.
Still waiting for approval. (FBI name check)
The following is my experience with Nebraska and Seattle CIS.
I am not trying to scare you, just trying to give you a heads-up:
* Have you changed your address since you applied for I-485?
I did and I have notified Nebraska about that. I received the transfer notice from Nebraska, but I did NOT receive the interview letter from Seattle.
It was a miracle that I knew of the interview date and was able to attend it.
* Interview was simple for my case. Just needed to show employment letter. However, they were still waiting for FBI name check results. So, could not approve my case in the interview.
* Have you contacted FBI about your name check results?
I didn't know about this FBI thing until after my interview. I contacted FBI after the interview and they replied recently that they have completed the name check on me BEFORE my interview date. Yet, Seattle claimed that they did not receive the name check results during the interview. So, I will need to go to Seattle physically to sort this out.
I would recommend you to contact the FBI ASAP to if your FBI name check is completed. (Search for "FBI name check" and see the instructions there.)
CC