If you’ve been even remotely keeping up with the tech world this week then you’ve probably heard about the new Meerkat app. Even so, you may not really have a good idea of what it is so allow me to explain. First of all, there’s a good chance that the app is already dead thanks to Twitter. The app allows users to start a video stream that automatically sends out a tweet with a link to the stream. Thanks in large part to SXSW, the app managed to become the 59th most popular social networking app in the App Store by Saturday.