The IT world never stands still. External forces are always conspiring to ensure that change is the only constant for IT organizations.
It seems like just yesterday that IT spent most of its time focusing on only managing – employees. IT supported desktops that were owned by the company and were running company owned software. Those desktops traversed company-owned networks to company-developed applications, running on a company-owned server in a datacenter owned and operated at the company. It was in this more centralized world where IT often had to implement unwieldy tools that were predicated on control and management through ownership. But departments, end users and many use cases were often underserved. (See blog: What Rogue Users and Cloud Services Can Teach IT)
Today IT lives in a world where end users are more diverse, spanning from employees to contractors or outsourcers, partners, customers, students and citizens. Their devices are no longer just Windows PCs, but include thin clients, ultrabooks, tablets and smartphones running a variety of operating systems; some owned by the company and others by the user. These devices may be on the corporate network, but are also running on 3G, 4G LTE, public and private WiFi systems as end users access their applications, which include software that isn’t company owned, such as applications run in the cloud as a software as a service or those downloaded from an “App Store”. (See Blog The Accelerating Rise of Rogue Clouds.)
--> please see the rest on the blog : http://blogs.vmware.com/euc/2013/02/the-rise-of-the-multi-device-workspace.html