As I had predicted! Conglatulations!!
Interview went OK. The officer was nice even though she asked me a LOT of questions about travels. I traveled over 8 times during my last 5 years and none of those over 23 days. She asked me the purpose of each of those trip. She even looked over my old passport to see all the stamps on the passport and found one that was not listed. She asked why I didn't enter that travel on my application. I said it was before I became a PR. But she said that was still within last 5 years. So it was my bad. She then wrote that on the application for me. Everything else went smoothly. At the end she said I am recommending you for approval and asked me to wait in the waiting area to receive the oath letter. About 20 minutes later, I got my oath letter for oath ceremony on August 24th at 2 pm at landmark center in St Paul. The whole process took about an hour.
05/12/2011: sent N-400
05/13/2011: P.D. dated
05/18/2011:Received SMS and Email notification
05/21/2011: N.O.A. RECEIVED
06/06/2011: F.P. notice dated 6/13
06/13/2011: F.P. done
06/15/2011: Application in-line for interview scheduling
06/30/2011: Interview scheduled
07/05/2011: Interview letter received
08/12/2001: Interview date (passed)
08/24/2011: Oath date