how to hyperlink your addy:
- go up to the Reply To This box above
- type your Twitter-name or address (e.g., @YOURNAME, or twitter.com/YOURNAME)
- highlight it
- click on the little chainlink icon in the toolbar (third from right)
- it will bring up a new box containing a prompt: http://
- complete it so that it reads http://twitter.com/YOURNAME
- click Add Reply, and you should be done!