to allow the usage of Build Controller 2010 with TFS 2012
in order of a much simpler upgrade path it should be allowed to use Build Controller 2010 together with TFS 2012.
This feature is included in Update 2 for Visual Studio Team Foundation Server 2012
jus got informed of this : http://blog.hinshelwood.com/visual-studio-2012-update-2-supports-2010-build-servers/
This as my vote.
Tobias Larsson commented
This one i heard is in Update 2 CTP - This one should have highest priority if it's not in update 2....
I totally agree with using existing controllers 2010 to ease migration to TFS 2012
yes, allow it to reuse at least an existing Build Agent 2010 togther with TFS2012!