Well this is kinda surprising. They just bought instagram and then release their own clone which they obviously have been working on for a while. The app is only available via iTunes so it is not available for Android yet, although I assume it will be very soon. But the question is, why did Facebook buy Instagram for 1 Billion if they were just going to release their own version anyway? Was it a copyright issue? I would doubt it considering there are 20 other Instagram clones in the market.
Anyway, here is a link to the app: http://itunes.apple.com/us/app/facebook-camera/id525898024?ls=1&mt=8