回複：I-485等批準已等了很久。 今天收到移民局的通知： in order to speed up processing

Same to me. My case stuck in CSC since 07/2005 under name check. Got same notice on 04/2007 and transferred to NSC. Got I-485 approval notice on 03/05/2008. Most likely stuck in name check for too long and transfer to NSC for speed up.