I’m working on a solution to automatic refresh the activity stream on a buddypress website.
The easiest way would be to replace the existing activty stream through the new loaded html code. Unfortunately, the page flickers. Also if the user reply to an update, his text will disappear.
The current scripts a part of my theme. I’ve packed the files to Theme, which is using the bp-default templates. Here you can download the current version of my automatic-refresh theme.