according to the officer you have to meet all the requirements the day they interview you. i had my follow up interview on the 12/17/2008. there was no test or nothing, he just needed to bring me in after i meet the residency requirements. We had a long discussion about their policy on N-400 interview requirement. well according to him his supervisor advised him to close my case and make me reapply as i didn't meet my residency requirement during my interview. meaning another $675 and starting the whole process all over again. but he put my case on hold instead. according to him it wasn't my fault that i got interviewed early. we had a very informal conversation about USCIS bs. according to him there's a few in the department that likes to make people suffer and unfortunately most of those few hold key decision making positions, go figure. anyway i got my oath letter yesterday scheduled on 01/22/09. you should mention about the residency shortage during your interview. in fact that should be the first thing you should tell him as soon as you walk in to his room. and the link
http://www.txwd.uscourts.gov/calendar/MAGSA.PDF is valid for naturalization dates. i noticed they are reducing the number of ceremonies compared to few months ago.
07/18/2008: N-400 application Mailed to TSC
07/22/2008: Application received by TSC, tracking on the USPS
07/22/2008: Priority date
07/23/2008: Check cashed
07/26/2008: Online Status Last updated/touched
07/30/2008: NOA1 Received (notice date 07/24/2008, expect interview notice within 210 days)
08/06/2008: NOA2/fingerprint letter received (notice date 07/31/2008)
08/15/2008: FP Scheduled
08/08/2008: FP Completed (Walk in)
08/08/2008: FP received and sent back by FBI called to verify
08/21/2008: received interview document checklist (08/15/2008)
08/23/2008: interview letter received (08/22/2008)
09/23/2008: interview at 9:00AM, approved or recommended for approval.
10/24/2008: infopass to check on oath status, waiting on final approval from the supervisor
11/05/2008: letter to the congressman
11/06/2008: letter from congressman regarding the response timeline for my request.
11/14/2008: call from the officer regarding the hold up, will be scheduled for a follow up interview.
12/06/2008: letter received for the 2nd interview on 12/17/2008, letter issued on 12/03/2008
12/17/2008: 2nd interview
12/30/2008: oath letter received issued on 12/29/2008
01/22/2009: oath date