Can you please suggest a free, open source or low cost .net object persistence framework? I am not looking for ORM tools like NHibernate or Entity Framework. The closest commercial product that describes my need is fastobject.net framework. Thanks.
Try db4o at www.db4o.com. It was recently acquired by Versant.
Some pro's: It's open source with code available in java and c#. The framework is dead easy to use. The community is quite nice and you can get answers quickly on the forums.