It's simple so it's somewhat easy to take apart and re-purpose. I was able to use it to build an internet enabled kiosk for instance without a lot of extra weight. It's super stable also so it make a good server. Lack of package management means you won't find it in the standard VM distro line up though.
As for other uses... using it to reply to this comment right now.
As for other uses... using it to reply to this comment right now.