A great feature to add to this plugin would be to allow users to "unlock" private photos to other users on an individual basis. That way, they can make some photos private and ONLY allow certain people to see them if they want to. Great, if you are going to use buddypress as a "dating" social network where you can hide some photos and share others. Is something like this coming? This would totally make this plugin rock! And add a whole new level of customization.