The applications, the run-time state, the data, and the delta changes to data are all XML. This allows the run-time state of applications to be synchronized across devices and across different logged-in identities. The effect of this is that applications almost become like a virtual machine or container that can move between two physical servers while running, i.e. application virtualization makes moving applications between devices possible thanks to XML.

If you can move a running application window from one laptop to another, or to your phone, your computer is essentially no longer running on a single hardware. It is in the cloud and can manifest itself on any device and treat it like a piece of glass. Multiple devices can together form a multi-screen setup and parts of an application can run on different devices for a more user friendly-experience.

If applications can float freely between all devices and they together make up your total computing experience, then what is a computer? The XML-based cloud operating system makes this possible without any effort for the software developer to build an application. We see this as the true promise of cloud computing and ubiquitous computing, using the device's local processor, but treating all devices as screens to your cloud computer - pieces of glass.