Amazon’s strategy for it’s Android AppStore is obvious, they want Android users to check out the store every day, and they do so by providing a free app each day. The apps Amazon provides premium paid Android apps, and even premier launches, like yesterday’s free app, Plants vs. Zombies. Today’s free app is Pac-Man.
If you didn’t get the free copy of Plants vs. Zombies, you can now buy it for $1.49, but only from Amazon as it is not yet in the Google Android Market. Assuming that Amazon is doing the same with the free Android apps as they are doing with their MP3 specials, the developers of the apps Amazon offers for free are getting paid, and so having an app selected to be a day’s free release is a bonus for developers and an incentive for developers to release their apps with Amazon.
As far as game play is concerned, Plants vs. Zombies was originally developed for touchscreen devices, so it plays very well on Android devices. Pac-Man, on the other hand, was originally an arcade game that uses a joystick, so it is not as easy to play on a touchscreen. To move Pac-Man you slide your finger on the screen in the direction you want Pac-Man to move.
If you find it difficult to remember to check the Amazon AppStore each day, you can install an app on your phone that checks the Amazon AppStore each day to find that day’s free app and displays a notification with the app name.