I am excited to see the public announcement of Biztalk Server 2010 R2.  We just mae this public on the Biztalk server team blog earlier today.

http://blogs.msdn.com/b/biztalk_server_team_blog/archive/2011/12/08/biztalk-server-2010-r2.aspx

Will keep you all posted on the developments once we get further into the development process.  In the mean time please provide your feedback on the current CUs and what you expect to see in the new releases.

Thanks

Guru