I'm an AT&T 3GS user, so I'll be upgrading this time. My family is on Sprint with a family plan. My thinking is that moving to the family plan will be cheaper for me, so I'm leaning that way. It seems odd to me that Apple announces that Sprint will get the iPhone yet the website has no info. Do any of you have any idea about the plans? Will I just be able to order a new phone and add it to the family plan for the same price as any other phone addition?