Apple has released a new Digital Camera RAW Compatibility Update for OS X 10.8 Mountain Lion. The update adds support to iPhoto and Aperture for a host of new cameras including, the new Leica M. Here's a list of all the new camera's supported:
Canon EOS 70D
Fujifilm X-M1
Leica M
Leica M Monochrom
Nikon COOLPIX P330
Pentax 645D
Sony Cyber-shot DSC-RX1R
Sony Cyber-shot DSC-RX100 II
Digital Camera RAW Compatibility 4.08 can be download via Software Update in OS X.