According to the tech website iMore apple is planning to announce the iPhone 5 at a press event on the 12th of September. The device will then be launched on Friday the 21 st of September. In the past iMore have been very accurate, so expect this to most likely happen. However its worth pointing out that it seems unlikely that the iPad mini will be announced at the same event, because  rumours have emerged from a website called ilounge that suggests that the actual launch date of that device will most likely be in November, due to apple not being able to have the device ready in time for a September launch. 

Apples new iOS 6 software is also expected  to be launched  at the iPhones 5’s press event . It worth noting that the iPhone 5 will most likely be launched with the new iOS 6 software. iOS 6 is expected to have up to 200 new features that includes Apples new maps,a further upgrade of Siri and deeper Facebook integration.