The Gaming Center/Internet Cafe type world has a couple of software companies who specialize in support apps. That environment is ripe for adding a digital readout to each computer that displays current user, time remaining, gaming stats, time in use, etc. I wonder if any of the hardware or software folks that work with LCD/VFD displays have even thought about partnering with these folks?
Here are links to the two main apps:
http://cafesuite.net/
http://www.cybertimesoftware.com/index.html
-Cap'n E