BYOD is causing many organisations to look again at VDI (Virtual Desktop Infrastructure) as a way of simplifying the management of desktops but also to be able to deliver applications and services to tablets and other devices. Historically VDI was handicapped by the performance of the infrastructure as the way it works is to effectively create an instance of the remote device in the data centre and then communicates screen information to and from the user device. The challenges were in the performance of the network between the user and the data centre, the fact that the storage was remote to the application on a disk and the performance of the network in the data centre. Add into that any security controls that were required and it became a bit of a suboptimal solution.