Apple has a released Digital Camera RAW Compatibility Update 3.13, which adds RAW file support to Aperture 3 and iPhoto ’11 for the following cameras:

• Canon EOS-1D X
• Nikon D800E
• Nikon D3200
• Olympus OM-D E-M5
• Panasonic LUMIX DMC-GF5
• Sony Alpha SLT-A57

Download the update from Apple’s website.