Looks like Amazon PM'd the Android store prices for the daily specials that are running at Google's own app store.
Good if you have gift cards to spend, or if you missed ones from prior days (some apps that are again full price at the Android Market are still 10 cents at Amazon)
Example:
Amazon.com: Appstore for Android
Good if you have gift cards to spend, or if you missed ones from prior days (some apps that are again full price at the Android Market are still 10 cents at Amazon)
Example:
Amazon.com: Appstore for Android