Through September 30th, buy any select Android App and receive a FREE $1 Amazon mp3 credit. The qualifying apps are offered in the Amazon.com Appstore for Android that display the offer message on their webstore product information pages.
After completing your purchase, you will receive an e-mail indicating that a $1 credit for Amazon MP3 music downloads has been applied to your account automatically, along with instructions on how to redeem your credit.
Limit 1 credit per customer. Credit must be used by October 31, 2012.