Download link: http://oron.com/fpuv0c72ha62 (SHA1: ead25e85f468ae4a130419a93ab71382c58eea46)
The OSX port of PS3 Game List, based upon v1.9.2, is here, featuring the same app updates (minus the platform specific functionality). Mac OS X 10.5 or up is required, so is OpenSSL (OSX ships with a slightly outdated version, but it should work; feel free to update to the latest release, though) and the Qt lib (the download link includes base files).
Haven’t tested it on Lion, let me know of any eventual misbehavior.
As usual, feel free to suggest something new, and, if you happen to find any bugs, please report them as well.