I'd say the guy deserves what's coming at him. Tampering with the iPhone with HARDWARE that are not mean to be used with it, invites consequences that you will have to bear, and unfortunately in this case, his eagerness to get an iPhone 3G without proper researching and weighing his options on the dangers and risks of using such a hardware solution results in the said explosion.

Let see those sellers in Garage Sales weaseling their way out of this. As for buyers who still go through this route after this revealing info, dont come back whining here about your exploding iPhones after prior warnings such as these have been conveyed.