I have a Nextel i870 which cost 0.00 but now I want another Nextel phone which also cost 0.00. My current Nextel is sctratched up a little and has moments when it doesn’t act right but for the most part it’s still a good phone. I want to trade in my current phone to Viagra buy get the new phone but I’m not sure on how you trade it in or if it’s possible to do that. I heard from somewhere that you can trade your old fone in to get a new different phone and just pay the rest. Like if you had a phone that cost 0 and you now want a phone that cost 0, all you have to do is pay the difference. Is that true?Does any one know if you can/can’t and if you can, what do you have to do?