I'm interested as well. I am sure that the keyless chuck idea would be somewhat dangerous in a router though. They are designed for 2000 rpm, and are not dynamically balanced for higher speeds.
I've been considering a dual head machine- One with a router, and the other with more of a mill setup with a quick-change system. I need to drill and tap, as well as route.
Anyone out there with two independent heads on a gantry?
Zeph