Filesystem:/Applications/blackra1n.app/appList2.plist

This is the app list in blackra1n and limera1n. It is, of course, a plist. It lists packages that are compatible with the jailbreak that was used. geohot appears to have done this to avoid having to modify the actual binary file, and instead just update this and the Info.plist file. This is supported by the fact that the application is stored in /Applications/blackra1n.app instead of /Applications/limera1n.app with the limera1n jailbreak.

limera1n
 <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">  ModelsSupported All Packages Name Cydia Url http://cache.saurik.com/limera1n/cydia.tgz icon http://limera1n.com/cydia.png Description It's a monopoly for a reason