Most tech blogs have been filled with wild speculation about when Apple would be releasing the next iPhone and possibly the iPad mini. After having read dozens of different dates, most pundits have now settles on September 12 as the magical date Apple will shine the light of its new devices on its followers.
It seems the deal was sealed when iMore chose this date. For those that don't know, iMore seems to have an uncanny ability to determine accurate release dates for Apple products so the market tends to believe them. This date was further validated by Jim Dalrymple from The Loop.
To be clear, I believe Apple will call the next iteration of the iPhone "the new iPhone" and not the iPhone 5. This is in line with the naming of the new iPad.