At the level that the intention is to let you use facebook safely, yes. My feeling is that it would be far easier to convince us scared geeks to install a privacy app that helps our friends and family (with little effort on our part) than to get the unwashed masses to do anything about privacy violations.
If you use the Facebook condom, as it were, and as a part of that it synchronizes your data with some open source format, then you get safety and privacy, you move your data to an open format, and friends get transparency. Good for all, no?
I don't think it would be hard at all. Privacy could be the new anti-virus.
You can scare the general public pretty easily. All it takes is one example of what could go wrong and all of the sudden there is a boom.
Privacy is the new anti-virus.
The question is who is going to move into this area and claim a market.