We'd all but forgotten that National Geographic runs a little phone business on the side through a retailer partner, but yeah, it does -- and after a couple years of forgettable hardware, things are starting to get interesting. The idea with these guys has always been to offer SIM cards that offer global roaming at a price that has at least a fighting chance of not bankrupting you, but the problem is that with a traditional phone, you've got to replace your regular SIM card while you're using it; dual-SIM phones exist in bountiful numbers outside the US, but finding a domestic model is nigh impossible. The new Duet D888 option let's you mix up one of Cellular Abroad's roaming SIM along with a second of your own, so theo