How to Show Who Spoke Last, and Who Will be Next

Floor control is not necessary for ``off the cuff'' conferences; the talk model suffices. This is a ``free for all'', where all users may type simultaneously, and their input updates all the appropriate output windows on all other users conference screens (many per screen): When floor control is operating, we need to show the order of speakers. One possibility is: The current speaker has the large central window. The windows for past speakers form a spiral of decreasing sized areas on one side (for less recent speakers) The people waiting to speak form a similar spiral on the other side.