it seems it does have something like that, at least from what I can understand from techcrunch
> Amazon says it will be pushing “special offers directly on your Kindle”, including things like $10 for a $20 Amazon gift card, and $6 for 6 Audible books.
> Amazon says it will be pushing “special offers directly on your Kindle”, including things like $10 for a $20 Amazon gift card, and $6 for 6 Audible books.
http://techcrunch.com/2011/04/11/amazon-announces-ad-support...
EDIT: ah, it was at the end of the amazon page actually :)