In response to Bophonic:
Well then according to my theory of 3-way processors, Apple will probably will keep the G3 in the iBook and, as stated before, will most likely be boasted to 700MHz.
Here is my theory about 3-way processors:
There are three types of processors that are of the main focus: the G3, the G4 and the G5. It would make the least bit of sense for Apple to use three lines of computer chips on five lines of products. What would consumers think? I would assume safely that it would be much easier for Apple to use only two types of processors: one for the basic consumer and one for the pro models. Since both models must suit people who will not want something slow, and since the G3 would not perform as well with OS X as a G4, since OS X uses the G4 V. Engine, the G3 would be almost useless for a processor. Also, as someone mentioned, the price of high speed G3 chips is too high, so in order to compete with speed, Apple would have to use G4 chips.
The basis of my theory: Apple cannot deal with three processors, while the G3 is being squeezed out.
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Any time is a great time for iPod.