Interesting info re conductivity, Kynan. One more addendum to the heat issue: When running on battery, this PB is just barely warm! It's hottest when it's _actively_ charging (i.e., when plugged in and under 100% charged). When it's plugged in and the power cord glows green (fully charged), it is slightly less hot. Someone writing in a Readers' Report on the Macintouch site made a similar observation, but also reported that sometimes the battery indicator won't go all the way up to 100%, and it seems that the machine is going to keep charging without end. I have not had that experience. Doffie On Monday, February 10, 2003, at 11:07 PM, Kynan Shook wrote: > If you're wondering about thermal conductivity, Aluminum is about 10 > times more conductive than Titanium. That's good in some sense; the > heat is getting away from the processor and other hot components more > easily. It's also bad; the heat is getting to your hands more easily > because of this. > > FWIW, I found a few values for the thermal conductivity of plastic, and > they were about the same or slightly more conductive than titanium.