The generous, and marketing savvy, folks at Rovio have a great offer at the Amazon appstore today. You can download the ad-free version of 'Angry Birds Seasons' for FREE. Not only that, but if you do download it, it will replace your current ad-supported version and leave your settings and gameplay save intact! Thanks to the guys at Droid-Life for spotting this one. Man, I'm really digging this Amazon appstore more and more all the time.
Source: Droid-Life via Amazon