Laser Fantasy -
http://www.laserfantasy.com/ - used to have a system (or utilize a system) based on an Amiga 2000 computer. I know this becuse a former LFI employee bought the whole setup that they used in Seattle Center a few years ago.
My guess is that it's haden't been used for some time, so I don't thing they are using Amigas at all any more.
