I have to be honest, I am not very knowledgeable on this kind of thing, and so far my google searches have produced zilch, BUT I was wondering if anyone might have some information on the ST iPhone 4. More specifically, are they unlocked for use on any carrier? I've read a little about the ST iPhone 5 not being able to use LTE and such for whatever reason, but they can be used with other carriers. To make it a little more difficult, I will be moving to Canada soon so I basically want to know if I need to get rid of the phone (Or use it as a glorified iPod), or if it will still be usable. I don't know enough to figure this stuff out myself, and I can't try it until I move, so if anyone can help, I'd truly appreciate it. To clarify, it is the iPhone 4 8GB, from Straight Talk/Walmart.