TwUnfollow is a new internet tool that you can use to be notified when people unfollow you on Twitter. How important that really is depends on the uses you put Twitter to, obviously.
If you are raising brand awareness you are bound to find such a service nothing short of vital, as you will be able to take the steps you deem as necessary if people begin deserting you.
On the other hand, it is hard to imagine a “casual” Twitter user deriving a lot of uses from this. The follow/unfollow dynamics of Twitter imply that friends come and go in a very different way to services such as Facebook.
In any case, this service is really simple to use. You just log in by using your Twitter handle and then the application will check your followers up to five times per day. Maybe adding an option to specify how many times you want TwUnfollow to check your number of followers would be a nice addition, but other than that there is not a lot to change.
TwUnfollow.com In Their Own Words
“TwUnfollow notifies you about Twitter followers that are not following you any longer. At the moment we check the followers about four to five times a day.”
Why TwUnfollow.com It Might Be A Killer
People who place a big value on their Twitter followers (IE, marketers and related individuals) are bound to maximize it.
Some Questions About TwUnfollow.com
In which ways could the site be overhauled aesthetically? 
