This is a handy mobile interface and works great from your desk too. You simple log into Tweetbe.at (as in TweetBeat) with oAuth and pick a channel or hashtag. When I say pick, I mean type one in to be clear. There is no list of existing channels to be found. I made a quick one for the SocialMediaBusinessForum (#smbf)
You are then presented with a nice sized, timeline list of tweets with that tag and the avatars and names of who sent the tweet. By clicking the small talk bubble you can see the entire thread they find around that tweet, which is handy for seeing it as a chat.
There is also the ability to translate the text in the conversation and have a permalink just to that individual conversation! You can also retweet, favorite or reply. URL shortenting is included as wel as simply grabbing the hashtag in the reply automatically to keep the thread going. Muting is allowed by clicking the skull on a person or choosing it from the main menu.
In the settings area you can create a description for the channel, the style, color and what to include. Such as retweets, replies or even automated postings. The default color seems to look the best from the few I selected. I am unclear if it does autoupdating or if you can control the time at which it refreshes. I saw no settings for that portion.
The interface lends itself great to putting this on a screen for conferences, seminars and the like.