On Tuesday VMware announced their answer to the public cloud: the vCloud Hybrid Service (vCHS). One of the biggest hurdles for the roughly 500,000 VMware customers has been that their on-premise, private infrastructure isn’t directly interoperable with any sizable public clouds, like Amazon AWS or RackSpace. If you want to move towards a public or hybrid cloud model you need to add additional software, like Enstratius’ offerings or VMware’s own vCloud Automation Center.