Digtwit is a very simple tool that checks for a hashtag (e.g. #digmia) in a user's friends feed on Twitter and retweets any messages mentioning that hashtag automatically. By following a user, you allow a user to be included in automatic retweets.

Changes:
This version added support for the new Twitter API and upgraded all underlying libraries. It also uses new style retweets (without "RT ...").

URL:
Digtwit – Freecode