Ina Fried, for AllThingsD:
Apple is expected to unveil its next iPhone at a special event on Sept. 10, sources told AllThingsD.
Also correlated by Rene Ritchie of iMore.com with this interesting tidbit:
Apple will be announcing their next generation iPhone – what most people are calling iPhone 5S for convenience sake – at a special event on Tuesday, September 10, 2013, and possibly the less expensive iPhone – rumored to be called iPhone 5C – along with it.
Both sources with very good track records on predicting Apple events. In my mind, this is a mere one-word post away from being the official date.
Update: Jim Dalrymple says: “Yep”.