The PS3 does get hot around the vents, and the air coming out is very warm, but aint that the point? The only part of my PS3 that gets hot is the air vents, so surely the heating system is doing a good job of removing the heat generated inside the PS3 and dumping outside. The thermal shutdown protection is quite good on the PS3, i think there a 3 different phases, depends on the LED colour and flashes, cant remember the exact specs, apart from if it turns off all of sudden and the LED goes red then leave it off for a while to cool down. This prevents permanent damage to CPU/ GPU through overheating.