After bitterly waiting, eventually we got email:
On January 25, 2007, we mailed you a notice that we have approved this I485 APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS. Please follow any instructions on the notice. If you move before you receive the notice, call customer service.
My information:
NIW in VSC
I140/I485 filed 05/2004
I140 approved 06/2005 after RFE
First fingerprint 04/2005
Second fingerprint 10/2006
I485 RFE 12/2006
I485 apporved 1/2007