> I was also interested in heat: the > 12" was noticeably warm tho not hot, the 15" lukewarm > above ambient temperature, the 17" was at ambient temp. > All had been running at least the 30 minutes I'd been > there, none doing anything specially intensive as far as > I know. (I have bought a 15", for a user for whom the Thanks to Tom R. for answering my unasked question as to heat. My other question is what is the quality of the sound from the speakers in the new 15"? Is it closer to the 17" which is reportedly pretty good or nearer the 12" i.e. tinny as the old TiBooks? Thanks to anybody who can help on this. All the best, Colin.