[Johnbot]

That's actually pretty neat - I didn't know LabVIEW was that extendable.

Last year, team 2607 used a separate Java application running on the driver-station to add rumble functionality to our Xbox controllers.
We just read the button states from the application to trigger the hard and soft rumbles, but you could easily integrate it into your dashboard to communicate with the robot (which would also allow for other nifty things, like reading the triggers separately, etc.)