LUD change on 6/6/07 - EB3 sub (PDSep'01)

[rka1]

EB3(India) substitute.
PD Sep2001
ND Aug2004
I140 approved in FEB2005
Job changed in Jan'07 using Portability.
Case transferred from CSC to NSC in Feb'07
latest FP on 3/27/07; This time FP Notice recd from NSC.
3 FPs; 3 EAD/APs;
I485 LUDs - recently on 4/5/07 after our FP acknowledgement; again on 6/6/07.
Any comments on the recent LUD change?

Thanks
rka1