Cuyahoga .NET Web Framework (using NHibernate)

I haven't looked at this in detail, but this CMS looks tidy I thought.

http://www.martijnboland.com/cuyahoga/1/view.aspx.

In particular, if you look at the admin screens in the screenshots section you'll see what I mean. As a bonus, this also uses NHibernate to manage it's persistance, so could be a good reference application for best practices? I'm going to take a closer look and publish my findings...