I've used Tweetwally before: http://www.tweetwally.com/ - you can save it with a custom URL and then display it however you want (projected on a wall, direct people to the URL, etc).
Hello everyone:Have any of you ever done a twitter wall for an event? Can you tell me what kind of hardware is required, and where would I get it?Any advice on setting a hash tag for the event, etc?Thanks!Ann
--Ann Nordby
Web Manager
University of Minnesota | Extension Center for Youth Development
McNamara Alumni Center
200 Oak Street SE, #270B
Minneapolis, MN 55455 USA
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extension.umn.edu/youth