I collected some response from WWW.IMMIGRATIONPORTAL.COM
I-140 applied may 2 2006, Aug 28 RFE.
replied for RFE On September 19, 2006,
no response from them. Still waiting for the approval.
---by REDDYCN (NIW)
I responded to a RFE in Oct 2006 and just got approved a few days ago. I think you guys should hear from NSC soon. Good luck to both of you!
---by bobdog (EB-1)
I also applied my application to VSC in sept 2005 and it was transferred to NSC in may 2006. I received a RFE and answered it in Nov 2006. I got an approval in Dec 2006. Good Luck...
---by NIW-VSC05