While sitting in our local SBS 2008/Vista event this morning, Peter Gallagher, a TS2 presenter, mentioned that SBS 2008 Premium will ship with both SQL 2008 and SQL 2005 workgroup edition. The SQL 2005 is included for LOB apps that may not be ready for SQL 2008. You won’t be able to run both versions simultaneously, but you can switch when ready. This is documented in the Database box at http://www.microsoft.com/windowsserver/essential/sbs/compare-features.mspx.