No, I didn't raise any SR or scheduled an infopass. The two emails I received today are a bit contradictory.
The first email says:
"Application Type: I485, APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS
Your Case Status: Card/ Document Production
On November 18, 2014, we ordered your new card for Receipt Number LIN1418******, and will mail it to the address you gave us. If you do not receive your card by December 18, 2014, please go to www.uscis.gov/e-request to request that we send your new card to you. If you move, go to www.uscis.gov/addresschange to give us your new mailing address. ..............................."
The second email says:
Application Type: I485, APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS
Your Case Status: Decision
On November 18, 2014, we registered your permanent resident status and mailed you a Welcome Notice for Receipt Number LIN1418*******. Please follow the instructions in the notice. Your new permanent resident card should arrive by January 17, 2015, after this registration or after you complete any ADIT processing referred to in the welcome notice, whichever is later. If you move, go to www.uscis.gov/addresschange to give us your new mailing address. ..................."
I did some research on the second email but the folks on the forums suggested to ignore the second mail and wait for the Card in the mail. I believe the ADIT process is for those whose finger prints are older than one year with USCIS. I might be wrong. Just waiting for the cards or a welcome letter in mail for now and will proceed accordingly.