From the start of the year I have been working on a little project called Blaze8. It’s an application to display tweets on large displays. Blaze8 has a built-in twitter client that allows you to create campaigns that auto update via twitter searches, timelines or lists. You can also create a manual campaign where you can manually add tweets (ideal for tweets that need to be pre approved).
Blaze8 is a nodejs application with a mongoDB database.
Blaze8 is currently in open beta. If you have any question on the project please contact me via the help button on the Blaze8 website