ObjectSpaces integration, with WinFS
You can read about the ObjectSpaces integration challenge with WinFS here and on Alex's blog. So I guess although we need ORM TODAY, we are forced to wait a little longer, invest in porting, an buying expensive licenses later on. I’m confident integration is the right step, but from a customers perspective I would be very happy to leverage ORM technology on v1.* incarnations of the framework. I think I just have to keep moving forward.
And hey I’m a framework purist, I still think the best place for an ORM API would be somewhere within the framework. Despite the at hand alternatives for ORM in .NET.