It's hard to call two incidents of some occurrence around the world a trend, but, when those incidents both involve an electrical device catching fire spontaneously, it creates a situation that's hard to ignore -- especially when that device is the iPhone. On Saturday, Italian blogger Tim Colbourne was charging his 3G handset and, after three hours, it sparked and caught fire at the base. Tim did a little investigation and found a case of a Swedish handset doing the same thing back in 2008, making us a little concerned that there could be more melted chargers out there. Apple replaced that earlier phone after something of a fight, and while we're hoping they'll be a little friendlier here, we're also hoping this gives Cupertino another bit of incentive to go ahead and switch over to micro-USB already. All the cool kids are doing it, and you don't see their cables catching fire -- usually.