Also, FYI: Here is my timeline for AOS. Remeber its started from April 2007 and went until Apr 2008. More than a year.

April 10 :
notification letter 2008AS00006***

April 14 : Sent documents to KCC

November 15 : Sent DV fee $375

November 22 : Medicals Done

December 6: Received DV fee receipt.

December 31: Sent AOS Package to Chicago

January 16: Check Cashed $1010.

January 21: Received NOA for Both I 485/ I 765

January 26: Biometrics Appointment letter

February 8: Biometrics Appointment

March 1: Received EAD (EAD was not used until the Greencard was received)

April 11: Interview. Approved

April 22: Green Card Received