After seeing comments blossom in FriendFeed, it seems either Twitter should have comments, or extend the API so someone else can add them.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
After seeing comments blossom in FriendFeed, it seems either Twitter should have comments, or extend the API so someone else can add them.