I don't think Apple would consider it, since it would compete with G5 sales, but what would it take to mate the G4 processor with (for example) a 40~50% CPU speed FSB? I don't know more than the basics of computer architecture, but all I think you'd need to change is the multiplier of the G4. Since the FSB is the bottleneck in any G4 system, this should give a significant performance increase. What I'm getting at is a holdover for the PB and possibly iBook lines until the G5 gets cool enough for a notebook case. So am I drinking too much of the Kool-Aid or what?