I guess this is my public service announcement for the day :-)
I just checked the big three's websites (amazon, adorama, b&h) and it appears they just received a new shipment from Nikon because the 24mm is back in stock at all three. If you've been waiting for this lens to be back in stock, now's your chance. I've been contemplating getting this lens for a good while myself but I finally decided that I just couldn't justify it... yet :-/
On another note, this might also be good news for those who are still waiting on their D800's and D4's.