Recently my wife began complaining about how hot her MBP was getting when using it on her lap. A little research revealed that their are a boatload of products on the market that can mitigate this problem. But, we also noticed that the unit's underside gets very hot when running on the desk top with good clearance around and underneath it. Though I understand that internal temps for electronic gear can normally run hot-to-the-touch, I began to wonder how one can tell that the MBP's built-in heat control hardware & software are failing to keep the unit within the range the unit is designed to operate in. Is there a way that one can manually check the MBP's temperature sensor value, and if so, know when it is not staying within it's safe operating range?