I am sitting a work today playing a game on my DX in my free moments. I have my DX plugged into my PC for charging. I looked away from my phone for a second to check something in my support system at work, and I here a click (or more likely the sound of a speaker popping), I look down and the green indicator light is solid and bright, but the screen is off. Buttons don't respond. Pulled Battery, reseated it and attempted to reboot.
I found out after going to VZW that my battery exploded, no damage to the phone, but it explains why it was suddenly so hot. Sadly 50 bucks later, I am back online with my same DX and a new extended battery. I would have rather bought it online for a better price, but I was pressed and my wife said we had the extra cash.
Oh well... Nexus and March upgrade can't come soon enough.