As an update, we've added an embedded webserver to the robot, that has an interface you can use to change variables on the fly. I believe LabView has a similar capability (it was the inspiration for it), but you have to use LabView to use it. This just needs a web browser.
I'll be releasing the code for that shortly in a separate project, but its pretty sweet. Theres a demo posted here:
http://www.chiefdelphi.com/forums/sh...ad.php?t=76928