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I thought the ironic sharing on social media and reward system was a nice touch ;-)

Seriously though, I think the value add is that it can send you alerts when permissions change, or just nag you to clean up the permissions -- sounds like useful nagging. I don't see Facebook making any attempt to help me reduce the number of apps/permissions.

Give you the ability to see what kind of access you've granted which application, and the option to 'nuke' (i.e. disconnect) all apps in one go. The alerts as mentioned below as well.

I think the mobile version is the main feature. Accessing many facebook settings from your phone is a challenge.