[GoofballJones]

I used to goof around on this at the place I worked, which had an SGI Indigo II with it install.

Just goofed around with it, never actually "used" it in any meaningful way.

[jweir]

This is the application http://en.wikipedia.org/wiki/Fsn

I played with this too on a Personal Iris, and Indigo I owned back in the day. It was fun, but not very useful.