Despite the VECD licensing model having been availalbe for some time now, including a lot of content that explains how it works. It still seems to be plagued with a shroud of mystery.On a weekly basis it seems I get a report or question from a customer or partner that is struggling to get VECD pricing or a clear explanation on how it works.
Recently Microsoft updated some of the VECD content and it appears they have taken another stab at simplifying what is needed when purchasing VECD. They also cover several uses cases detailing how VECD devices should be licensed in several differant scenarios.
In addition, Patrick Rouse over at Provision recently went through the trial and tribulations for everyone and collected all of the VECD SKUs the SKUs Patrick's blog entry can be found here - Microsoft Licensing Requirements for Desktop Virtualization