I've mentioned that I think there is probably some use in Twitter somewhere before. The jury is still out on this for me. On the one hand, tweeting is very useful as a broadcast mechanism beyond bulk email with less need for context than blogging. But on the other hand, it's hard to follow more than one or two people. So, the value of the broadcast is rendered pointless if you know that there is no-one able to listen...

Seems to me that the best use of Twitter is search.

Possibly more cynically - but amusing nonetheless - is my colleague Simon's view that: "Twitter is SMS for people who don't have any friends".

This seems to be supported by the FriendFeed Imaginary Friend feature...