One-week-later update: I've started up a demo and rolled out a test client, and took another webinar. There's one image on the Kabuto Live demo that shows a slide of the "System Information" tab which show it as "Internal IP."
I suppose that makes showing the client IP address a "premium feature." It's not the end of the world since I'll be using Live, if I stay with Kabuto, but I'm a bit prickled.