Well I was playing with Pocket Permission and I simply love it!
I had originally thought it was an app version of your infamous intro to Android Guide, ALP, but it's so much more! The best feature I love is that after reading up a certain permission in the app, I can then view ALL of the apps that USE that permission. So it gives me more analytical tool as to whether I want the app or not
I think a good feature that you might want to consider is the ability to direct you to the system install/uninstall of that app.