Hi
I know EIZO techsupport says it doen't work on the Intel Macs, since it is not officially tested and the software is not Universal, but it works. I have tested it myself and have run several presentation of the calibration process using the Colornavigator and a MacBook Pro.
You don't do anything to run it in Rosetta. OS X does it for you. If it is not a universal coded program but for Power PC OS X runs it by Rosetta, which is just a software emulation of a PowerPC processor. Takes a little juice out of the system, but works flawlessly.