A newer version is available for mac at https://cowpod.net/projects/raspiemu, which supports the Raspberry Pi 2, multiple instances, as well as CLI and GUI management.
An automated Raspberry Pi emulator for Mac OS X, Ubuntu, as a well as a few other Linux distributions.
As of 2021, the disk images are no longer available. You will need to manually download and patch said images.
Additional information available in the README file,...