Keep this topic going!
I was just about to ask about this thing on the back of the phone when I got online. Are you really gonna try make it, awesome!
I think you guys are right about it so far, at least as far as I know...
The diodes themselves probably do the rectifying, and the black thing probably does only make the pattern the lights flash with, but doesnt that mean that you could probably make the circuit without the black thing, and the diodes wouldnt flash?
If so, THATS AWESOME!!!!
I love this kind of thing(reasons to have a happy day...)