Licensing changes in SQL Server 2008 R2

In case you are not aware, there have been some significant licensing changes in the SQL 2008 R2 release, especially with the introduction of the DataCenter edition as the top-of-line edition. SQL Books Online documents the facts, as always, but sometimes it’s convenient to just understand what are the deltas. Towards this, I was made aware of the following article from Directions on Microsoft:

This article contains a nice tabular summary of the facts. I found it useful, and I hope you do as well!

Many thanks to the folks at Directions on Microsoft.