VMware is launching what it bills as the first operating system that has been developed specifically for cloud computing. Called “vSphere 4,” the virtualization platform pools and then manages an enterprise’s virtual infrastructure and computing resources in its data center. VMware has previewed some of this functionality in various products — namely its Virtual Datacenter Operating System. However, the enhancements to vSphere 4 promise to dwarf the benefits that companies have realized with its earlier-gen products.