As you already know, AT&T has reduced the price of the award winning Nokia Lumia 900 from $99.99 to $49.99 a while back for the cyan, white, black and pink (available at AT&T online only) variants.
I stumbled on a Lumia advertisement on AT&T.com that has refurbished Lumia 900 for a penny ($0.01), with qualifying plan and 2 year contract. The only colors available for this penny promotion are cyan, white and black.
For more information on the Lumia 900, feel free to click on this link.
Let us know if you have any questions regarding the Lumia 900 by commenting below or connect with me on twitter (@jjklee)