Verizon iPhone 5 is unlocked, able to accept GSM SIMs right away
 

Great news for those waiting anxiously at the door for their UPS / FedEx delivery... well, for those awaiting a Verizon iPhone 5, anyway. We've already broken down the differences between the trifecta of iPhone 5 models, and it seems that the one VZW is hawking is a real gem for travelers. Aside from handling Verizon's LTE waves just fine, the nano-SIM slot will also accept cards from any other GSM carrier worldwide. In other words, AT&T nano-SIMs will get you onto its HSPA+ network, and T-Mobile nano-SIMs will play nice as well. If you're heading overseas, you can pick up a local nano-SIM on arrival and plug it straight in -- no unlocking code necessary. To confirm, this even applies to Verizon iPhone 5 units that were purchased under contract. You can hit the video after the break for proof, but heed one word of advice: wait until you find a legitimate nano-SIM to throw in there. It looks as if the cut-and-stuff approach leaves a bit to be desired.

http://www.engadget.com/2012/09/21/v...-mobile-video/