Christoper and I have had the privelage of helping Ayende to build the UI for his NHibernate Profiler over the last couple months.  Yesterday evening he released the public beta with a 30 day trial version.  If you are using NHibernate, get over to the product site and download the beta.  This is going to be an invaluable tool for developers using NHibernate and you can get it at a special price if you purchase during the beta period.

As a developer on this project, I had the unique opportunity to watch a master at his craft.  The architecture of the product is clean and Ayende has managed to jam pack this version with a ton of NHibernate smarts.  Just working on it, I gained a deeper understanding of the types of problems one can run into while using an ORM.  I would not want to do another project without it.

Another exciting aspect of this application is that we are using the latest version of Caliburn in the UI architecture.  Generally speaking, the UI architecture is composed of a very rich Presentation Model (MVVM) with a splash of MVP for good measure.  There is almost no code-behind in the views.  All communication is handled by Caliburn's action message mechanism.  We were also able to use Caliburn's new testability features to cover all our views with data binding validation tests and do basic property change notification testing.