Andrew,
Please post additional info when you'll have this info. Strangest part that only quick specs say that SQl 2008 supported.
Release notes say that SQL 2008 was depreciated, configuration and installation guide says nothing about SQL 2008 support and support matrix also says that SQL 2008 is not supported:(
I do not understand why were SQL 2008 and 2008 R2 so easily killed:(