Amazon's Appstore for Android is well known for handing out paid apps for free, but normally users don't have a choice in which apps are offered up. Amazon is currently running a promotion that changes that, however, offering a $2.00 credit to anyone who follows @amazonappstore and allows Amazon to tweet a special message on their behalf.

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Getting the credit is as easy as pressing a button, and sending out one promotional tweet is a small price to pay for $2.00 worth of free apps. If you're interested, check out the promotion page on amazon.com here and enjoy your free app(s).