The folks at Cisco came out with a wonderfully innovative idea for conferencing called TelePresence. TelePresence is a Three-dimensional holographic conferencing technology that will allow appear as if people are actually in the room with you. It was simply amazing to watch and you can check out the video below.
You can watch the video here: Cisco Holographic Video
You can read more about it here: Cisco telepresence 'on-stage' holographic video conferencing