I attended the “Where’s Wally” Configuration Manager event at TVP recently. Good news! The SQL support has changed (for the better) in the recently released public RC of ConfigMgr2012.
The following versions of SQL server are now supported:
All other versions are not supported for the RC. (Though this really only affects TAP customers)
It turns out that I got the wrong end of the stick slightly on the R2 support! (Thanks to Cliff Hobbs for pointing this out) SQL 2008 R2 will be supported in the above configuration (confirmed by TechNet article gg682077) but the RC support is still being qualified, so caveat emptor..
I will post more information from this event over the coming weeks