Hi Thierry, thanks for responding.
What I meant is that the plugin loads the newer tweets every 30 seconds. The older tweets are not removed, simply pushed down. So if I want to see an older tweet, I can scroll down to any point in time from when I loaded the wall display.
The only thing I’m afraid of with that is if I leave a Twitter wall up for 12-18 hours, will the browser crash from lack of memory?