For all the Aperture users:
Using Panasonic GF1 Raws in Aperture
I Stumbled On this the other day, I finally got round to trying it and lo and behold it does work
I created an Automater Application that calls the Terminal command and simply drop the images on it and it creates the DNGs.
Of course there is some lens distortion as there is no lens adjustment in Aperture, but I'm happy with that compared to using another application.