MacCentral quotes Apple's Directory of Power Mac Product Marketing, Tom Boger regarding the 3GHz prediction from Steve Jobs last year. According to Boger, Apple will not meet the 3GHz promise:
Boger also states that users should not expect G5 PowerBooks this year.
When we made that prediction, we just didn't realize the challenges moving to 90 nanometer would present. It turned out to be a much bigger challenge than anyone expected.
All-in-all, no we are not getting to 3GHz anytime soon, but what we are announcing today is a very significant upgrade in performance and its something that are customers will be very happy with.
Boger also states that users should not expect G5 PowerBooks this year.