I called them today!!!
60 days passed since we had our interview done in NYC-26 Federal Plaza,we all got approved and our passports were stamped at that time,they said that cards can take from 5 to 9 months to arrive but I decided to call them anyway...A nice lady spoke to me on the phone,she said that I should not worry about it and sometimes it takes up to one year...but I told her that the web site info. is that we should call after 60 days...and she said that she was going to make a inquiry on our case(me,spouse and 2 sons).She made the inquiry,confirmed our address,full name,DOB,country where we were born,etc. She said that we are going to receive some letter from INS with info regarding our case, and if nothing happen in 30 days I have to call back...
I also asked her if my passport expires and I have to renewal it,what should I do?Get another stamp on the new passport or travel with 2 passports(old and new)She did not know the answer!!!