There has been enormous progress in the porting of the libraries. Now all VideoLab and AudioLab components are ported with the exception of the Generic Filters. The .NET generic filters obviously will have to be written from scratch in Managed code, although in C++/CLI they should allow native callbacks through the IJW technology. This means that there will be some time before they are ready, as they will also require some form of .NET video, audio and signal buffers. Never the less the progress so far is significant.
There are still 6 components from VideoLab and AudioLab that did not port without some manual changes. We will be working to improve the parser to get them to convert correctly. Obviously the next frontier is poring SignalLab - the most component rich of them all ;-) .
Stay tuned for more updates, and if you are interested in getting .NET prerelease of the libraries, please contact me at firstname.lastname@example.org .