http://twitter.com/ Get and send updates using your Instant Messenger, Mobile Phone, and via the web
Without signing up to twitter, you can view people's "tweets" using the #lostring hashtag via:
Note: hashtags.org only indexes updates from those who have already added the hashtags bot ("follow hashtags") ... (Not sure about the terraminds service - chippy)
Note: also, these have a bit of a lag, so it is really worth getting a proper twitter account for timely info.
A better way is to Sign up to twitter.com.
Type "track lostring" in the "What are you doing box". Now you will be see all the updates from all those using the #lostring tag.
Then type "follow hashtags" in the same box.