NFI reports that they have got a confirmation of an Intel nForce project, so there is a very high chance that NVIDIA is going to produce nForce chipsets for Intel CPUs :
Confirmation of the existence of a Intel nForce project has been recieved. This project seems to be one of the most, if not the most, secretive project in nVidia's history. Further details such as schedule or technical aspects of the project are thus unlikely to get through for some time.
Due to the potential financial impact of this information, I have considered not to leak this. This has finally only been leaked because this is practically only a very reliable confirmation of something many significantly less reliable people said. It is in no way new information.