at 100c is just refrence to what the operating peramaters would be like at 100c... for instance the current gain of a transistor increases with temperature and so does bakward leakage current(which is bad) which doubles every 10c... or at least that was what it did on the prescott... they usually use room temp or some other temp as a refrence point as the values would be different at different temps
and yes since the beginning of time processors have been consuming slightly more power than what they say... I can't remember exactly but not 100% of the cpu's power consumption is transformed into heat enegery thus the actuall wattage is slightly higher than the TDP... it's not really that much more as heat dominates most of the power usage...
there's only 3 bsel pins on the cpu... so in otherwords 400,533,667... that's it... no 800mhz fsb

so pinmodding will be impossible even on 800mhz desktop systems!!!!
but they did add some more vid pins... voltages now go from NEAR 0 to over 2v... can you imagine running your chip at NEAR 0 voltage... well other than the part about the chip not being stable AT ALL... it seems interisting... i'm still waiting on nhc to update so I can see just how low the chip can go...
and I thought the VT was disabled on all but the fastest processor... I guess it's worth another looksee... also I diden't see anything about 64bit but half that document is hard to read... I can understand it partially cause I like to read whitepapers...
also intel increased the maximum temp before emergency shutdown from 93c to 126c... I'm not exactly sure why if the chip supposidly runs so cool...