A Holo-Vite was a way of sending a message to someone, usually to invite them to an event of some sort. They could have any sort of layout or structure, as the message was purely the sender's content. When sent to someone, the receiver hears a Gadgetron HelpDesk message, informing them that they had a message. When the receiver reaches a place with a screen that can play the message, the receiver could view it.