The Data Platform Insider just broke the news:
“Today, SQL Server 2008 R2 received an official release date. It will be listed on Microsoft’s May price list, and will be available by May 2010.”
You can read the full press release on the DPI blog, and read carefully. It notes that customers with Software Assurance can upgrade to R2 at no charge. However, if you didn’t buy Software Assurance along with your SQL Server licenses, R2 is not a free upgrade.
For more about SQL Server 2008 R2, check my articles and videos: