porjo writes "Peace has been established on at least one front: XenSource and VMware are working together to improve virtualization in the Linux kernel. Their original disagreement has been displaced by a commitment to work on a solution together, says Simon Crosby, CTO of XenSource, the company that builds products around Xen virtualization software. The two are trying to come up with a common approach to virtualization support in the Linux kernel. [snip] The work now under way would let hypervisors from Microsoft, VMware, and Xen work together in the same data center. Under such a scenario, it would be possible for a Xen virtual machine, trapped on a piece of failing hardware, to be automatically moved over to a VMware hypervisor on another piece of hardware."