How do you know if your iPhone is eligible for an upgrade?

Answer 4g is the best (it isn't even related to the question!) there both nearly the same but the 3g do have a wall paper after you unlock the ipod touch

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How do you know if you're eligible to upgrade to a new iPhone?

From your old phone, just dial *NEW# (*639#) or send a blank text message to the aforementioned number. You will receive a text message. The message will contain either: Something along the lines o... Read More »

How do you check and see if you are eligible for an upgrade on iPhone?

If you mean,' Do iPhone 3GS's have Verizon service?' No, not anymore, as of 17/10/2011 you can only get the iPhone 3GS on AT&T!

Will an AT and T purchased iphone work on Verizon's network if Verizon gets rights to use the iphone on its network - I would like to upgrade my iPhone but want to know if I should wait?

How do you reactivate your old iPhone 3gs if you upgrade from the iPhone 3gs to the iPhone 4 and then lose or get it stolen how would you reactivate your old iPhone so you can use it again?

Yes, the IPhone 4 is now available. It became available in February.