It's a pretty popular camera...along with the forthcoming 1d4. I'm assuming Apple is waiting out the 1d4 release to update the RAW abilities of both Aperture and iPhoto.
They're both using the same processors...not sure if that's where the similarities end or if the processing (post RAW) is similar for both cams or not. This would make sense for all of the processors from Adobe, Aperture, CapOne, whoever...
Hopefully within the next couple of months, otherwise, as mentioned by Zack, convert to dng or grab a "trial" from Adobe...they have a Beta version that's decent right now...not final, but looks great, IMO>
J