The new hardware is, as expected, a slimmed-down version of the firm's iPhone 4, but boasts a number of other headline features.

Perhaps top of the list is its 8MP Camera, capable of shooting full 1080p video. However, of particular interest to the music industry will be the device's full compatibility with Apple's server-based iCloud service - a key part of iOs 5.

The handheld also offers a "voice assistant" called Siri, which Apple claims will respond to users talking ...