Interesting thing: Saved searches are stored as a short XML file with a long encoded string that when you decode it properly, resolves to more XML that contains all the search's settings.
Converting it to XML would make it more indexable, and I believe that's exactly what Salto's product does.
However, you can also do an Analytics Audit search to find what are basically a complex form of system notes on changes made to any of the settings, criteria, results, etc on the Searches and gather a lot of info that way. I use this technique when I'm trying to hunt down where an automated email comes from and nobody knows (granted, that should have been documented when it was created in the first place but real life happens).