I called USCIS on June 2 at 5:20pm (EST).
Here is the message I got from email:
The last processing action taken on your case
Receipt Number: LIN06xxxxxxxx
Application Type: I485 , APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS
Current Status: Notice mailed welcoming the new permanent resident.
On June 8, 2010, we mailed you a notice that we had registered this customer's new permanent resident status. Please follow any instructions on the notice. Your new permanent resident card should be mailed within 60 days following this registration or after you complete any ADIT processing referred to in the welcome notice, whichever is later. If you move before receiving your card, please call our customer service center at 1-800-375-5283.
If you have questions or concerns about your application or the case status results listed above, or if you have not received a decision from USCIS within the current processing time listed*, please contact USCIS Customer Service at (800) 375-5283.
*Current processing times can be found on the USCIS website at www.uscis.gov under Check My Case Status and Check Processing Times.
*** Please do not respond to this e-mail message.
Sincerely,
The U.S. Citizenship and Immigration Services (USCIS)