We have released NConstruct Lite v2.5. It uses NHibernate 2.1 and supports Microsoft SQL Server 2008.
Homepage: http://www.nconstruct.com/NConstruct-Lite.aspx
Download page: http://www.nconstruct.com/NConstruct-Lite-Download.aspx

NConstruct Lite is a powerful wizard-like tool for creating application's data layer source code for NHibernate object/relational persistence and query framework. NConstruct Lite examines database's metadata and creates NHibernate HBM files, entities' source code, Microsoft Visual Studio project file, and some optional helper files.

Any suggestion, opinion or comment would be greatly appreciated!