This from Electronic News Jan.21 2002, vol.48 no4:
"A tawainese pc manufacturer dropped a P4 processor into a prototype laptop to see if it would work. Well, it did - sort of. It reached a searing 158 F (70 C), which is enough to slow cook an egg, and the battery lasted a whopping 45 minutes. It seems the P4 wont be the choice of the road warriors for the immediate future."