MacModder has been designed to make modding easier, something that hasn't been widely available on Macs. Since we launched as Minecraft's first Mac-only mod installer in January 2011, we've been trying new ways to make modding easier. With the constant updates to our software, we've now made it as easy as drag-and-drop installation since MacModder 5.
When my son used this on his MacBook Air, the Finder was reset to some pre-Lion interface elements. I had to reinstall the whole OS X to get things back to normal again. Use with caution!