Twitter has just announced release of its API to enable geotagging. This means that you can allow people to see where your tweets were tweeted from—and to see where others are tweeting from. Twitter says
The added information provides valuable context when reading your friends tweets and allows you to better focus in on local conversations. Now you can find out what live music is playing right now in your neighborhood or what people visiting Checkpoint Charlie are saying today about the anniversary of the Berlin Wall.
In other words, it should make geographical dicing of the twitter torrent easier.
Geotagging is turned off by default. To turn it on, go to your settings page and look for the location section:
Check the enable geotagging box:
(To delete such data in the future, click on the button below it.)
To see it in action, check out one of the applications that has already built this functionality in. (Twitter lists Birdfeed, Seesmic Web, Foursquare, Gowalla, Twidroid, Twittelator Pro as among those which have.)
If someone has it enabled, you’ll see it on Seesmic web as a small beacon. Mouse over it and a map will pop up: