I just check website of USCIS case status and found the card ordered today.
Thank for all the people who gave me the help. I wish everyone would get GC soon.
My case:
EB1b University sponsor.
140 submit Nov. 2009.
One day later, it approved since the university paied $1000 for premium process.
485, I submitted Jan. 2010.
At the end of March, FP.
At the end of May, RFE.
USCIS got the letter on June 7, and It approved on June 14.