Anyone tried this yet?

http://www.webcamxp.com

This tool claims to be able to read input from 'IP cameras' (using RTSP/MPEG4 or (M)JPEG) and present it as a DirectShow filter/virtual capture device.

The last bit is important, since most Windows applications that use video (like MSN etc) can (only) get their input from a DirectShow device.

Matching the output of the N900 to the capabilities of this tool should be easy with Gstreamer/VLC/... (I.e.: have gstreamer/vlc/... stream the camera images over rtsp).

It's definitely not opensource, but it seems a free version for personal use is available.
I'm just not really sure yet if it's legit

I sure would like to test it out during my VJ gig tonight, but won't risk destroying my XP install with possible spyware :-D
(I really have to start looking into Linux VJ tools)