If I Die is a Facebook app that lets users create a text status update or a particularly morbid video message, which will be pinged out to all your followers "if" you should happen to die.
Once the Facebook app is granted access to your account, it prompts you to record a message, then add a few trustees who will be asked to push out your last witty aside when they hear of your passing. The idea behind the app would appear to be that it gives us a chance to come with some proper "last words" for others to remember us by.
The above image of the cloud giving the finger is taken from the app's seemingly genuine promotional video, which suggests you might want to use your post-death message to settle old scores. What a classy way to go. [If I Die via Daily Mail]