This is somewhat sad because I hate macromedia flash but apparently there is no decent flash player for linux on ppc.
There was somewhere a petition for flash on ppc but macromedia doesn't care about a bunch of people with ppc, especially ones on apple machines which should run mac os X anyway.
Moreover, this trend (i.e. ignoring second-class ppc users) is shared between nvidia and broadcom (i.e. if you happen to have a nvidia-based powerbook/ibook forget about suspend-to-ram and airport extreme).