I had wondered how Amazon would keep up with the free app of the day when they first announced the app store. Guess I know how they do, now.
The Amazon store is meh, anyhow. Had it not been for the free app of the day, I wouldn't have even installed it. I appreciate the fact they tried to recreate the walled garden of iOS on Android, but the disadvantages outweigh the advantages with AAS. The major disadvantage is that apps really don't seem to get updated all that often. If I really like an app, but want the updates, I know that I'll just have to throw down the money in the Android Market. The AAS, as far as I'm concerned, just hands out demo copies.
Now that I know the developers are likely not making a dime off of their Amazon listing, I think I'm more likely to buy the ones I commonly use off the Android Market.