I Filed 485 in Boston then I moved to KY. I have not updated my address to KY since INS might transfer the case to Texas. My Lawyer told dont change address since all originals till approval goes to Lawyer. My Finger Printing as well as RFE and approval went to Lawyer. I went to Boston for FP/stamping as per notice. I got my stamping now and I am going to call INS next week to update my current address. If people move in same Service centre there is no problem. If they move from one Service center to another they transfer your case or might get delayed.