Apple’s latest mobile OS software update is due to be released on Wednesday 8 September. Apple’s UK website briefly listed the date before reverting to: "Coming soon."
Steve Jobs announced the update last week at Apple's annual music themed event, which also saw new iPods introduced.
iOS 4.2 aimed primarily at iPad users will follow in November.
According to Apple: " iOS 4.1 Software Update is the first major update to iOS 4, bringing Game Center, new iTunes features, high dynamic range photography and more to iPhone." Ping, dubbed a new social network for music, which lets users follow favourite artists and see what friends are listening to via iTunes, will also be included in the update.
Apple's iOS 4 update works with iPhone 4, iPhone 3GS and iPhone 3G, but not all features are compatible with all devices.