I dont know where PRALAY got his info from. but the online status does change when the Card is approved, ordered and mailed.
Just in case, he still has doubts here is my current status, I already have the Plastic card:
Application Type: I485, Application to Register Permanent Residence or to Adjust Status
Current Status:
On March 5, 2004, the card order was completed and we mailed the applicant's new card directly to him or her. If 14 days have passed and you have not received this card, you may wish to verify or update your address. To update your address, please call the National Customer Service Center at (800) 375-5283.