I've had it running for 5 minutes so far without any issues. I'm running on the ITS2007 4.2007.26-8 (July release that added skype). I also have the beta connection manager that adds SIP, but I doubt that affects anything.

What I am doing, however, is running it with the device in Offline Mode. This might prevent the connection manager from doing something to cause kismet problems. I'm watching access points on chan 1, 4, and 6 so it looks like scanning is enabled.

I even let the screen go black for a minute and it wasn't interrupted.