It is ten years since the official launch of Amazon Web Services — and, during that decade, the cloud has moved from an over-hyped concept to a business reality.
Today, on-demand IT is used in a variety of ways by organisations of all shapes and sizes. But what will the future bring? We analyse the current market for on-demand services and predict how businesses will use the cloud by 2020. 
 By Mark Samuels for ZDNet