The raw processing services are supplied in the CoreServices.framework system library. Not something you want to mess with by hand, but it's not required that the operating system be updated to plug in the latest camera support.
Ah. Indeed Godfrey, however, messing with RAW.plist is something most of us have done to our good at some time or another.
Currently though, it's easier to use Kevin's nice little automator to change the name of the camera, as 'similar' cameras are supported for both the GF1 (G1) EP1&2 (E30)
Incidentally - although slightly flakey, when it's good Aperture 3 is completely stunning - much better than I'd expected and really quick as well. One has to assume that if it's fantastic
most of the time, a couple of upgrades will make it fantastic
all of the time!
all the best