Exchange Server 2007 will be supported on Windows Server 2008 R2
Microsoft had initially planned not to have Exchange Server 2007 supported on Windows Server 2008 R2. However, in response to feedback from customers worldwide, things have taken an interesting change–
Exchange Server 2007 will soon be fully supported on Windows Server 2008 R2!
The Microsoft Exchange Team is working on an update for Exchange Server 2007 that will enable full support for Windows Server 2008 R2. Watch the Exchange Team Blog for latest information on this update.
This is an excellent example to prove that we do listen to customers. 
Shijaz Abdulla is a Partner Technology Advisor at Microsoft, helping their top tier partners build on their Microsoft practice. He is also a trusted advisor to medium enterprise customers in Qatar. He is a blogger, tech enthusiast, and a Microsoft evangelist.
New blog post: http://tinyurl.com/yjz3u67 – Exchange Server 2007 will be supported on Windows Server 2008 R2
Dear Shijaz,
I need to see all your Exchange 2007 related blogs together. I always struggle finding required topic related Exchange. Could you please help me! I know you can help me to be a good trouble shooter in Exchange:)
Hi Anis, you can click on Exchange Server 2007 on the tag cloud in the right.