Pretty much, yeah! When that episode of The Office aired we all emailed each other - it was pretty hilarious. Of course ours was a bit more pragmatic, it would only send to the medium that would best get in contact with you - and you could use it to bulk send messages to your friends. A tool like that doesn't really need to exist in this day-and-age as everyone always has their cell phone and modern cell phones are super-capable.

For reference, the clip from The Office: http://www.youtube.com/watch?v=ytc9-wGCHW0