The heating issue was from the GPU, cooling wasn't done properly, the last I checked, they didn't fix the GPU or did any redesign work.
When you say its FIX, does anyone have detail of the fix? I could imagine several ways of fixing this:
1. Improve overall cooling by using an active cooling system or something that does better thermal transfer
2. Change the way how the rendering engine work so that some of the less punishing calls are done through the CPU instead
3. Tune down the GPU speed
Or combination of the above... in anycase, while the XB is a good system, the technology behind it is out dated, I think most of the current games available on the XB is already driving out all its potential. It will be difficult for the XB to keep up with further development/advancement in the gaming world.
Plus, the fact that it uses a MS based OS pisses me off