course u can use it, check the usa website for release date and info.
http://www.nokiausa.com/
*edit* i just did some checking around and its not decided whether the 800 will be released in the usa. From what i read, the 710 will, but they will hold out on releasing the 800, perhaps to see what reaction the 710 gets.
http://www.nokiausa.com/
*edit* i just did some checking around and its not decided whether the 800 will be released in the usa. From what i read, the 710 will, but they will hold out on releasing the 800, perhaps to see what reaction the 710 gets.
You can get unlock code from your service provider and get unlocking instructions from any of the online vendors like MobileUnlockGuide.com to unlock your Nokia Lumia 800 .