Twitter is all about remaining connected with your friends, but some of your friends who don’t access twitter often are lost. That’s why I have developed TweetActive which shows your and your friends TweetIndex. TweetIndex is true measurement of your activity on twitter. This helps in identifying the friends of yours who are not active and need you to ping. It also helps you to identify yourself that u need to tweet if your TweetIndex is bellow a certain value.
TweetIndex is true inspiration for tweeting.
Have a look http://tweetactive.com