The full list of consoles (and the emulator 'cores' that are actually handling the heavy lifting) are all listed below. But the biggest reason to update is that the front end now features support for 16 new consoles, including early 3D systems like the Nintendo 64 and Sony PlayStation. OpenEmu 2.0 redesigns the user interface, adds real-time rewinding for gameplay, can organize screenshots and save-states, adds more than 80 homebrew games, and makes other improvements. The creators of OpenEmu, the attractive multi-console emulator front end for OS X, have released version 2.0 of the software just in time for the holidays.
Further Reading Hands-on with OpenEmu 1.0, a gorgeous classic console emulator for OS X