Twuzzer lets you find out what's being twittered in your neck of the woods. Auto-refreshing Twitter updates from anywhere in the world.

TwitterFon is a simple, clean, easy to use, and is a superfast Twitter client for your iPhone and iPod Touch. TwitterFon is focused on ease of use and 80% of your daily Twitter tasks, such as see your friends/replies/messages timeline, see favorites, and send/reply a tweet. You can also search tweets, get twitter trends, upload photos to twitpic.com, and update your location information.

Twitter Vision is a cool mapping mashup showing a samping of tweets from the public timeline on a world map.

Twitter Planet shows the Twitter public timeline on a Virtual Earth map. v0.6 now works on Spaces, but the gadget is still best on Live.com.

TwitterMap is a Twitter/Google Maps mashup that shows Tweets in real-time on a map.

TwitterFaces is a hypnotic glimpse into the lives of people around the world. It shows tweets layed over a Google maps interface.

Twitter Atlas is a mapping/geolocation application that shows a realtime feed of tweets on a map of the earth.

TwittEarth is a mashup that visualizes tweets on a globe, similar to Google Earth.

Twitspy shows you a real-time stream of the public time, displayed in an interesting and novel way.