Thanks Manu for the Tip !! Lumia 920 and especially Yellow Lumia 920 till now seems to enjoy good demand at AT&T. Yellow Lumia 920 is sold out and is currently listed as out of stock at AT&T. But, in case you want to buy Yellow Lumia 920, you don’t need to wait. Head over to Amazon or Walmart and take your pick !!
AT&T has also started selling Refurbished Lumia 920 for just $9.99. Though for now only Black Lumia 920 can be purchased as refurbished phone.