Apple is now offering unlocked iPhone 5 devices via its Store.Apple.com website. Until today, the iPhone 5 was only available via wireless carriers and you had to sign a wireless contract to buy the device at a subsidized price. Now you can pay a bit more for the device and use it on whichever (compatible) network you want. Unfortunately, the unlocked devices only work on the AT&T and T-Mobile networks in the United States, so Verizon and/or Sprint customers are out of luck.
Here's the official pricing, from Apple: $649 for the 16GB unlocked iPhone 5; $749 for the 32GB unlocked iPhone 5; and $849 for the unlocked 64GB iPhone 5.
Click on over to my recent iPhone 5 Pricing Madness story to see what it actually costs Apple to make the iPhone 5. (Hint: It's a lot less than you'll pay for an unlocked device.)