I would like to do more with my Windows Home server than file sharing and backups.
Has anyone tried installing SQL Server 2008 (any version, but I'm using Professional) on a Windows Home Server?
SQL Server 2008 Standard is currently running on my Windows Home Server without issue.
You can install it on Windows XP and Windows Server 2003 which have the same codebase as WHS so I suppose it's not too surprising that it took.
SQL Express will definitely work. I wouldn't know about the full versions, but I imagine Developer will work too.
Just be careful where you store your database files if you're planning to let them grow.