I bought the T60 largely because of the Core Duo processor with it's reported low temperature operation (and associated battery performance). I'm happy to observe that this is the coolest (temperature!) laptop I've ever owned or seen, by a long way. I can feel no heat whatsoever anywhere on the case, just a very slight warmth near the center of the base - but you really have to 'feel' carefully to notice this. By comparison, I've had friends burn their legs with other laptops, and I've stopped putting my Dell Latitude Pentium M-based laptop on my sofa for fear of damaging the leather.
I will note that I have the T60 and not the T60P - my understanding is the T60P has better graphics, and probably runs hotter as a result.
While removing the palm-rest and keyboard, and I noticed a large amount of copper, for both heatsinks and heatpipes; I'm guessing this contributes to the good heat dissipation (my Dell uses only a small amount of copper, using instead a lot of aluminum or other 'silver' metal).
Is there a program that would tell me the temperature of the CPU, memory, HD, etc on the T60? On my desktops, I run various programs for this (Motherboard Monitor, HD Temp, Speedfan, etc) and on my Dell, I run a dell-specific utility (ik8fangui) but most of these either don't work at all, or only report very limited temps and may not be accurate, on the T60. The 'Speedfan' program, interestingly, reports two temperatures but does not identify what they are (CPU, GPU, DIMM, HD, etc) and they are suspiciously high given the observations above (49 and 55C - my Dell reports a CPU of 32, GPU 38, DIMM 43 yet it 'feels' a lot hotter).
Anyway - just wondering if anyone knows of a utility to display temps with some accuracy.