I posted about this last night but dinner was ready and I was in a hurry. So here's the official list of cameras supported — beyond the X100:
- Fujifilm FinePix X100
- Nikon D5100
- Olympus E-PL2
- Olympus XZ-1
- Samsung GX-1S
This update adds support for Aperture 3 and iPhoto 11. It doesn't include OS level support, so Preview and the Finder are still clueless about X100 raf files.
Get it from Software Update or from this page.