I applied N-400 on 2nd April and haven't received anything yet. I started to worry if my application got lost as I used regular mail, but today the check cashed from my bank. Finally some relief.... Here's my timeline:
No application # yet....
Local DO: San Jose,CA
04/02/09 Mailed N400 to Phoenix Lockbox (Regular mail...no tracking)
XXXXXXX Priority Date
XXXXXXX Received Receipt Notice
04/17/08 Cashed Check
XXXXXXX Received Fingerprint Notice
XXXXXXX Fingerprint Date - Scheduled
XXXXXXX Fingerprint Date - Walk-in
XXXXXXX Interview Notice Letter
XXXXXXX Interview Date
XXXXXXX Oath Letter Recieved
XXXXXXX Oath Taking Ceremony