I wrote a quick Ruby script awhile back which provides the same function (without having to follow @duckduckgo):
http://blog.jerodsanto.net/2009/05/expand-your-twitter-netwo...
http://blog.jerodsanto.net/2009/05/expand-your-twitter-netwo...
I could be persuaded if emailed a personal apology from the founder.
He's providing a free service that you tried and didn't like.