My family has recently decided to change plans from Alltel (CDMA) to Viaero (GSM). I was filled with excitement with this new news. I am wondering if anyone has been successful in unlocking the iphone and using a Viaero sim card with complete compatibility (like using Viaero's EDGE service)?? I really don't feel like blowing $300 on an iphone and not being able to use it. Thanks in advance!!