The extreme heat generated by these computers is not so much the battery as it is the microprocessor. I have developed a discoloration on my chest from using my laptop on my chest, while lying in bed. It's no bad ... just a slight burn. :)
I just checked my battery ... as I suspected, this doesn't impact me ... my TiBook dates to March 2001 ... it was one of the first G4 Powerbooks that Apple Produced. What a WONDERFUL computer it is ... it's given me 3 and a half years of solid service and has had ZERO problems. I love it.
Agreed ... too bad Steve is a liberal.
I stand corrected, you are quite right. I have a first generation G4 also and love it. But they do get hot- a good thing in winter.