Quoting from CRN:
VMware CEO Diane Greene said Monday that the virtualization software company isn’t worried about battling Microsoft and Linux distributors but will fight to ensure that the interfaces between the operating system and hypervisor are open.
At VMware’s Virtual Infrastructure 3 launch in Cambridge, Mass., Greene said VMware won’t fall victim to Microsoft or Linux distributors that incorporate the Xen hypervisor because VMware’s platform is far too mature and advanced for rivals to catch up and because customers value virtualization’s independence from the operating system.
…
Microsoft’s planned hypervisor won’t be available for another two years, but Greene said VMware vows that Microsoft will not be permitted to use its integration strategy with the operating system to lock customers into its proprietary virtualization API or technology…
Read the whole article at source.