An image of a Best Buy document shows that this major retail store is also expecting the release of iPhone 5 in the month of October.
This leaked document not only looks legit, but the information on it seems to be reliable. In part it says the following:
BBYM: iPhone 5 product introduction expected, pre-sales begin for expected October week 1 launch/Sprint launches iPhone 5 (Apple product introduction/launch dates subject to change)
Lets hope the release date is accurate or at least close. That way we don’t have to wait so long.