The release of PlayBook 2.0 brought so many new features to the PlayBook. Perhaps one of its best features is its ability to run Android apps. This is a feature that many have been waiting a long time for. Unfortunately many of these apps have not made it into BlackBerry App World yet. This could be for many reasons, part of the issue is the amount of time it takes to get an app approved. RIM is notorious for a lengthy app approving process.
In the meantime, there is another way to get all of these nice apps on to your PlayBook. This method is called "sideloading". It requires Android apps that have been properly converted from their native .APK files to .BAR files; to be sideloaded using a third party tool.