I have a Sprint account. I have a Verizon iPhone 4. I want to take the (Verizon) iPhone to put it on my Sprint account. Do I have to unlock it to put it on the account? If not then what do I need to do to put it on the account?

I have music and photos on both Amazon Cloud and Mozy. I did this to allow more room on my laptop. Now that I have what I want stored, do I just delete these items off my laptop/Itunes? What happens when I plug my iphone in the next time for an update and there are photos on it, not in Itunes Library?
The first response DOES NOT answer my questions. First, I do have my data in mutiple places, as indicated in the original question: Mozy and Amazon Cloud. Second, I didn’t ask what happens to photos in itunes. I asked what happens if I have new photos on my phone that are not in itunes? Meaning, if I am trying to save space, do I just upload them and then move to Mozy or Amazon Cloud?

And how do I free up space on my laptop, now that I have the items in online storage? Just delete them?

I have the first droid and I just bought the iphone 4s. Is there easy way for me to transfer my phone contact?

I have t-mobile and I would like to buy an iPhone, but the unlocked one from Apple are out of my price range. If I buy a Verizon iPhone 4 with a bad ESN could I still use it with my T-mobile sim card? Has anyone tried this?

In the wake of an iphone 4s, any suggestions on how to sell a verizon iphone 4 and make decent money? Ebay is a good place but there’s already a ton of iphones selling.