Finally, looks like the “knobs war” is coming to its logical conclusion. In the past 5 years there was a huge hit on the knobs, and by knobs I mean APIs (interfaces) that being exposed by different virtulization/cloud platforms. The “hit” was in particular centered around providing a layer on the top (the MASTER knob) that would provide ability to manipulate through a higher level interface (aggregated/federated knob) the knobs underneath. But with that the announcement of the AWS Management Portal for vCenter it becomes clear that this place is now closed.