Heat issues? Fan Noise.
My speculation on Fan Noise being the issue was not one necessarily stating anything about heat issues.
The PB 12" has heat issues. Right under the left side, where the HD is. Turn on HD sleep, it will be a lot better.
Fan noise also has to do with acustics.
It may also be that they have a limited choice of suppliers for fans, and the ones they're using are technically more powerful than needed, and make more noise, but the model down from those will not always be enough, though would be in ideal conditions. While this is not a major concern, deal with the unit getting a little warmer, or creating a little more noise, it's give and take. And this is but one possibility.
Keep in mind, the chip isn't the only thing that creates heat. Also, more technology is being shoved in.
But again, no reports of the unit having heat issues, only that they are having fan noise issues.
And given the materials they'd be using, I'm not surprised that they would encounter this.
But this is hopeful news, because it *is* in beta, and I'm certain it was nowhere near beta in January, and that many design issues have been resolved.
However, there may be an as-of-yet unannounced feature that is being incorporated into all PowerBooks, which would make sense for this long delay. But again, aside some minor issues with the 15", if Moto had kept their end, we could have had new machines at WWDC.
At least announced.
Right now I'm not expecting anything more than 1GHz and 1.3GHz though I am anticipating new goodies if not in this rev, in the next. I have a feeling Apple is about to do something new with portables that no one else is even close to doing, and will revolutionize the industry again. Of course, until it happens, whatever it is, it's just fluff. I just have a feeling...
Jaedreth