[mdwrigh2]

For those of you writing Android apps, this is essentially what the monkey[1] tool is for.

[1]: http://developer.android.com/tools/help/monkey.html

[tedmielczarek]

The difference here is that AFL is not just banging on the keyboard at random--it's doing a guided search to find inputs that change the program state in interesting ways. This is more likely to find bugs in a finite amount of time.