I just tried it recently myself, and not only did it not offer any new functionality that I could see, it broke the old configuration -- wouldn't show the files on the memory card and wouldn't let me select the memory card as a source for files.

I ended up uinstalling and reinstalling. Canola, alas, is unsupported bugware, but it's the best of a bad bunch.

I just watched a video showing an N800 as a controller for a UPnP system, and he was using MediaStreamer.