The new version of the service - previously called Music Anywhere and first made available through Carphone Warehouse's hundreds of stores last summer - uses cloud technology to give users access to their entire music library wherever they are in the world.

My Music Anywhere, developed in partnership with Catch Media, will now also be available to users of iPhones, iPads and BlackBerrys.

There are also two levels to choose from. These are Lite, which allows access to 16,000 internet ...