The Lync 2010 client virtualization white paper was released to the web (RTW) today. This document describes the supported functionality, environments, tools, limitations, and outlines a series of best practice recommendations for running the Microsoft® Lync™ 2010 communications software client in a virtualized environment. An official support statement (KB article) will be coming soon.
It is important to stress that third-party vendors may support configurations not supported by Microsoft. In those situations, customers are requested to contact the third-party vendor and NOT Microsoft for support.