VMware is hoping to persuade more enterprises to make the leap to virtual desktops by improving graphics capabilities and allowing them to circumvent Microsoft's licensing terms. The company is this week hosting VMworld Europe in Barcelona and desktop virtualization is one of the big themes at the event. Along with its plan to take over the whole data center, including storage and networks, VMware has accelerated its desktop push. This week it acquired desktop-as-a-service company Desktone.