XenSource has been getting a lot of attention lately. In a recent article, it was claimed that XenSource was laying the smack down on people over the Xen Trademark. It was even claimed that people would have to pay XenSource to have their applications certified or to simply use the Xen name in their product. And not long ago, VMware posted a benchmarking white paper that showed ESX Server outperforming Xen 3.0.3 Software Development