Yes, last year both GV and LV concierge were offered at AAA and AP rate. We stayed GVC March '05 and were fortunate enough to take advantage of a general public room code (but these codes seem to be few and far between these days), so didn't need AAA or AP.
For our May '06 trip, there were no concierge rooms offered at the AAA or AP rate -- although they offered us rack-rate. No thanks, we wound up having a lovely time in our GV non-concierge room (Tokelau 3rd floor) at the AP rate. Believe someone did post that for similar dates, they got an AP rate, so I guess it's just the limited number of rooms. Again, for us, we are totally happy that we paid for a regular room at the AP rate (I recommend trying the concierge once, but not twice).