I have decided to publish a BETA version of the tool I quickly made a day or two ago in order to calculate vSphere 5 licenses figures. This is the tool that I used to compile the data from my previous post, titled A Deeper Look Into VMware vSphere 5 Licensing.
Please keep in mind that this is a very simple tool and it i very much still in the early stages of development.
The calculator can be downloaded from here