would it be possible to put any time and date stamp somewhere? perhaps it appears if you "hover" on the message, but how can you do that? Another alternative would be to put a timeline at the top, like in historical timelines, and have dots there for prior messages that can be brought up like notes on an Excel cell.

Another thing people may like is to be able to drag the window around with the picture and message, and also to directly message them from the screen.