In an effort to make the office tour a little bit more interactive we built an API our lobby sign. Now people can tell it to do things via SMS. Things like animate and change colors. Most people use this power appropriately.
Everything is controllable from either SMS or a mobile website, and we can set up things like website hits, weather, or bad server deployments to trigger lighting events.
If you're interested in getting something similar for your office, reach out to email@example.com.