[5teev]

I would expect a decent third-party solution to scan for folders like this, just as every third-party browser grabs (or at least offers to grab) Safari's data.

[icebraining]

So, how would e.g. Google Reader do that, exactly?

[jarek]

Are sandboxed applications from the Mac App Store able to access these files? Sincere question, I'm not sure what the sandbox limitations are.