What burning questions do you have on licensing?

I have joined up with the Microsoft licensing team to deliver 2 videos answering IT Pro questions on licensing. We were planning to give each of the videos a specific topic.

It would be great to hear from you on what topics you would most like to see covered and any specific questions. Ideas we have had:

1) Virtualisation
2) Cloud - Windows Azure, on-premise & cloud hybrid models
3) SQL Server