Although no new information on the G4 PowerBook release has been given, I am quite sure that they are making good progress and that it will not be too much longer before we all can enjoy portable computing with the best Amiga-Like OS available.
I think they might be very close to a release for the G4 PowerBook (but have no first hand knowledge of such release).
I am under the impression they are making progress. But they probably won't say much until it is done. I mean they have already hinted at G5 and shown PowerBook at various events. What more is to say, really, until it is done?