Hi all, I'm new here and actually this is my first post. I'm a BlackBerry user that is probably going to be switching to iPhone4 next month. Just a quick question about the battery. Assuming it's like other Apple products and it's not user replaceable? If so, what kind of life should I expect from the battery? Typically I get about a year out of my smartphone batteries before they begin to noticeably degrade. What are the battery replacement options for an iPhone when the battery starts to degrade?