+status_url :: Integer -> String
+status_url status_id =
+ concat [ "http://api.twitter.com/1/statuses/show/",
+ (show status_id),
+ ".xml" ]
+
+-- |Given username's last status id, constructs the API URL for
+-- username's new statuses. Essentially, 'user_timeline_url' with a
+-- "since_id" parameter tacked on.