It seems the injector no longer works with the 64-bit version of SC4 that Aspyr uploaded to the Mac App Store. I attempted to install the injector so I could make use of Buggi's Cheats, but SC4 crashed following the introductory video prior to the region screen. The libinjector.dylib file still appears in the plugins folder, but the game ceases to function following the installation of the injector. My only solution was to re-download and reinstall the game after deleting the previous installation and all related files located in: /Users/[User Name]/Library/Containers/com.aspyr.simcity4.appstore. Hopefully we can get a solution to this soon. Otherwise, my days of padding out my cities' coffers are over.