485 approved after WOM

It is a surprise to me today that I just got six magic emails -- happy end of long horrible journey:

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Application Type: I485, APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS

Current Status: Approval notice sent.

On April 2, 2007, we mailed you a notice that we have approved this I485 APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS. Please follow any instructions on the notice. If you move before you receive the notice, call customer service.
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It seems different from other friends' message " 485 approved and card ordered", but I think the card is not an issue, am I right?

I would like to say, if I had not filed WOM, maybe I could be still waiting today.

Keep fighting, my dear friends.

Great thanks to lots of experts' comments, help, great posts. Especailly to xiaobaitu.

Here is my details:
RIR EB-2 RD, 10/2003,
140/485 jointly filed, 07/2005
Name check pending since 08/2005
Filed WOM 12/2006 through paid attorney
RFE for medical stuff 03/2007