The latest version of Apple's operating system could be presented on Tuesday, September 10 alongside the new iPhone 5S, according to an email sent to developers at software publishing firm Nuance and leaked to tech website The Verge. Among the features of iOS7 is a new control screen, which can be reached at any time to change the settings of the device without closing open apps. Multi-tasking will be possible with any combination of apps, as a simple swipe allows users to switch between them. The new OS will also provide iTunes Radio. The service will be integrated into iTunes across all platforms (Mac, iPhone, iPad, Apple TV), but launched only in the United States.

The update will be compatible with all devices launched since the iPhone 4 and iPad 2.

Apple is expected to release the iPhone 5S on September 10, most likely alongside a new, less expensive phone with more modest performance, known for the time being as the iPhone 5C.

Rumors have the new iPhone 5S to feature a fingerprint reader. There are also whispers of a more powerful processor, an increase in camera resolution to 13 MP, a double flash, and a new home button.

Apple gans are also expecting some word from the company regarding the rumored iWatch device, which is rumored to be positioned against the yet to be announced (IFA?) Samsung Galaxy Gear smartwatch.