Hi Privateer,
It's very unlikely that the next cell processors will outperform the current Intel chips (in certain areas) or meet Apple's goals.
Apple makes more money from its laptop sales that anything else.
The cell has never been a good laptop processor. IBM has never been able to get the cell processor's power requirements down low enough.
Also the cell has not been a fast processor. That's why apple started shipping their desktops with duel processors as a standard – to make up for the lack of speed.
Now look at Intel. The Pentium M is the hottest laptop processor right now. Their desktop processors have a solid future. And, at this time, Intel's processors run faster than IBM's cell. And Intel is looking at multi core (3, 4 or more) processors for the future.
Apple can get a better (arguably the best) laptop processor, so it can sell higher performance laptops (something they really need/want to do). They can keep a duel core desktop but they only need 1 processor to do it – potential savings. Intel has a solid future with it's processors – they will continue to innovate faster than IBM has (in terms of processors, that is).
Plus there is the potential added bonus that Apple might be able to over-come the traditional software weaknesses of the MACs.
So from a hardware standpoint, Intel is a better company to partner with. If this works out, Apple will have a much better computer.
Enjoy,
Panther