This is just a suggestion...for anyone whose obsessive about the phone over heating such as myself.

1) Find a way to take off the keypad lights as this contributes a lot of the heat.

I do not know how to do this, but if one was to to use the phone with touch screen only, you would realize that it wont heat up as much as when using the keypad.

If someone was to hack up a code or make a program to do this it'd be great . It'd also help reduce the heat produced when playing emulated games as well as increase battery life 'slightly.' Believe me, did this on a number of phones I had before and it helps.

2) Reduce LCD brightness....this doesn't make much difference :/ but hey it would help (a little).