I called NVR Mortgage this morning checking on our approval, and was told I'd have an answer "soon". I was expecting to have to call later this week but to my surprise I got a call from the loan processor late this afternoon telling me we were APPROVED!
The processor didn't have any specifics, other than to say "we're good" and that I need to let her know when I file my 2012 taxes so she can order the transcripts. I guess this is all I needed from NVRM until it comes time for rate lock/final approval and closing "ok" but maybe I'll check in with my LO next week just to be sure.