[deckiedan]

I wrote a digital signage system, and had 5 of them around a campus for a youth congress/conference last summer.

http://www.streetsign.org.uk/

This year we're doing 7 screens, and I've got two other offices at our company wanting to use it.

I've also been using them a bit as test servers, instead of virtual machines (so no slowing my workstation down...).

I've also a couple of them (while they're not at conferences) as web displays, showing asana jobs for the team ( https://github.com/danthedeckie/asana-view ) here, in our team room.

I've just started helping to set up a friend's one as a time-vault/time-machine for his and his wife's mac.