One of the issues of using Google’s Android platform was the inability to install Android apps and games to the SD Card versus internal memory storage.  With the official announcement of Android 2.2 this feature will come standard. By default, apps will continue to be installed on internal memory storage.  However a quick visit to the list of applications in the Settings menu offers one touch to move the app to SD Card. Thus they are playable just fine from the SD Card. Now user storage for apps and games will only be limited to the storage of the SD Card purchased.
Android 2.2: Install Android Apps to SD Card