Hi, I found a Verizon iPhone 4s (3g). It is unlocked and activated. I'd like to use it as much as I can. How do I switch it over to my phone number or a new phone number which I can use? I currently have a blackberry with AT&T that I get it through work for free. If I could substitute this phone into my current plan that would be great. Or I'm open to starting a new plan solely for this phone (iphone 4s) if I have to and can. Please let me know how I can go about doing this or any advice you have. I know very little about iphones as I've never had one. Much appreciated!