NPersist - a new O/R mapper
The guys from Pragmatier are going to release a new free/open-source O/R mapper for .Net.
Mats announced it here.
I think it's a good idea. O/R mapping for .NET is going to be free in the long-term, so instead of fighting that war, is best to have a standard platform for free and build things on top of it. Hibernate went this way in the Java world and succeeded.
There are a number of other projects to do the same thing, but having a long-term O/R mapping technology vendor backing it up is not common among them.
Of course, making ideas a reality is a difficult game, but I whish them luck!