Might be a worthwhile add on.
But the reality is there may not be enough fan throughput to keep the machine cooled properly - Apple has had issues with this in the past and clearly Apple is not engineering any software control in for XP so the warning is well heeded.
The fans do not come on yet the machine can get very hot.
For instance doing a full software install including all the apps and updates - because the OS is on the installer the heat controls are not active.
Now a G5 tower will by default spin the fans up when no controls are present but the MBP appears not to do the same thing....so it gets bloody hot.
It's fine to quote theory - but I've just done 4 of these in the past couple of days and I'll attest.
a) they are HOT and this was on a glass desk. I was shocked even touching the desk surface underneath.
b) the fans do not come on during long installs indicating it's software controlled not integral to the hardware.
TANSTAAFL - even tho Intels do run cool for the power even the G4s got hot and now you have fast ram, fast main bus, fast video card and a two core processor with a giNormous cache to cool....all those things make it go fast.
All those things make it hot. ( I mean look at the size of that honkin' power supply for the unit ).
Note that Apple does not consider the unit a "laptop".
I suspect the Macbook will be aluminum just for additional radiation cooling. The faster G4 iBooks tended to cook their drives one reason I would NOT opt for a 7200 in these.
I think there IS a shutdown thermal sensor and that is what is causing the unexpected machine shut downs.
The MacBooks are brilliant, worth every penny and not quite perfect. A bit of heat management is in order.