@david
Apple's "control" of the PPC is due solely to the fact that they go
through a guesstimated 190,000 G4s and 160,000 G5's
per month*.
Eyetech and Genesi combined won't see that many processors for many
years.
*numbers estimated from
here.
breakdown (numbers are approximate):
80,000 Imacs and Emacs/month (assume 50/50 split, stats are for G4
Imac, assumes G5 sales will be similar)
60,000 Powermacs/month (two G5s each)
80,000 Ibooks and 70,000 Powerbooks/month (all G4)
unknown number of Xserves.