We got our fingerprints redone last Wednesday and we received the "approval" form in the mail today!!! That is quicker than I remember it happening last time.
Now I just need to get all of the stuff together to file the I-600. My agency said I should include a letter that explains the issues that we had last time (David was born in the Canal Zone of Panama, he's a US citizen. They sent the paper way to get "verified" and it was forgotten on someones desk for about a month until he called to check on it.) This time we will be makin' a fuss a lot sooner than last time if we don't get it back.