While Apple could certainly change its plans anytime, sources said that the Oct. 4 date has been selected by the company to showcase the iPhone 5. Sources added that the plan is now to make the new device available for purchase within a few weeks after the announcement.
The site also notes that the event will also be important for Apple since it will be Tim Cook's first big product introduction and will affect public perception of the new CEO. Apple SVP of Worldwide Product Marketing Phil Schiller, iOS SVP Scott Forstall, and SVP of Internet Software and Services Eddy Cue, will be there to lend Cook a hand.
Apple has yet to officially confirm the event; however, AllThingsD is very confident in their sources.