With conflicting rumors reports that the iPhone 5 may be launched in September or October, the only thing we know for sure at this time is that there will be an iPhone 5 this year, and it's going to be big! When exactly this iPhone 5 will be released is a mystery.
If there is an indication of things moving along, it may be this report from The Guardian that claims that carriers have received sample versions of the iPhone 5 in order to test them on their network...