I pulled my iPod out of my pocket only to find a small amount of an unidentified blue substance covering some of the gold contacts. A thorough inspection of my pocket yields no results; it is completely clean. This incident has happened to me twice and I have lost two USB cables due to the transference of this blue gunk. I picked off most of the dirt from the iPod's port, but my USB cable emitted a flash and died. Fortunately for me, the iPod still has normal connectivity. As I type this it is charging on my wall charger. The only thing I can do for now is order another cable (my power cable is "power only", thus I do not want to risk frying my iPod when syncing), as I've done in the past. Anyway, I ask the forums to give me some explanation for this. Has a similar incident occurred to any of you?