I recently put together a proof of concept app for displaying "twemes" - hash-tagged tweets from Twitter (spell check is having a field day!). Twemes.com is a site that aggregates posts made to Twitter that contain various hash (#) tagged terms into RSS feeds. We wanted to do something for TechEd (#teched08) and this app was the end result.
This was a fun project to work on. It's the first time I've done any cross-domain work. I initially ran into trouble grabbing the RSS feed due to the lack of a cross-domain policy file. I was using Yahoo Pipes and had good luck with that, but through ongoing conversations with the people that run twemes.com, got a cross-domain policy put in place that allows me to consume the feed. Very cool of them to help me out.
The app displays 5 chat bubbles. The one with the orange time stamp is always the top post from the feed, the other 4 are selected at random. The app periodically checks the feed for new posts and if one is found, the bubbles disappear and then reappear with new data. Unfortunately, TechEd attendees are not Twittering heavily (or not using the tag), so you might have to watch it for a while to see it change (or post if you have a Twitter account).
You can see it live at http://www.toysfortweets.com.
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