Apple's latest Digital Camera Raw Compatibility Update [1] extends Aperture 3 and iPhoto '09 support to eight more cameras. Newly supported cameras include the Canon PowerShot SX1 IS, Olympus E-PL1, Panasonic Lumix DMC-G2, Panasonic Lumix DMC-G10, Samsung NX10, Sony Alpha DSLR-A390, Sony Alpha NEX-3, and Sony Alpha NEX-5. The update is available via Software Update and the Apple Support Downloads page. Apple also publishes a full list of supported cameras [2]. (Free, 5.68 MB)
[1]: http://support.apple.com/kb/DL1035
[2]: http://support.apple.com/kb/HT3825