updated 11:05 pm EDT, Mon August 26, 2013
Date of 'Golden Master' will confirm long-rumored event
Apple has not -- as of yet -- confirmed or denied a much-speculated September 10 launch event for what pundits believe will be multiple products, including multiple new iPhone models, possibly new iPad models and perhaps the launch of iOS 7. An email from Nuance to its developers that became public may have accidentally confirmed the release date of iOS 7 (and thus the latest iPhone or iPhones, at the least).
Nuance, which licenses much of the technology that powers Apple's Siri voice functions -- and thus would have access to information such as the iOS 7 release date -- sent out an email to members of its developer program that said that the "iOS 7 GA" (meaning General Availability) would be released on September 10. Normally this would mean that Apple would release its "Golden Master" to developers about a week beforehand, or September 3.
Assuming the September 10 date holds, it lends further credence to the idea that the event will focus on iOS products and software, rather than a slew of miscellaneous Mac and iOS products. With the exception of developer conferences, Apple has tended to focus on one operating system's family in its public presentations. Apple is expected to announce one or more iPhone models, and may also unveil its next iPad models as well.