My only gripe with Rackspace is how long it takes for them to push out a new version of Exchange when they're released... Was something like a year and a half a

My only gripe with Rackspace is how long it takes for them to push out a new version of Exchange when they're released... Was something like a year and a half after Exchange 2010 was released before it appeared on Rackspace? Curious to see how long before 2013 appears... Otherwise I love them.