Hibari for Twitter 1.1

It blocks tweets you don't want to see based on keywords you choose.

Hibari is an application that blocks tweets you don't want to see based on keywords you choose. In addition, this program interleaves your favorite search results into your home timeline so you never miss a thing.

Image links from Twitpic, YFrog, and other services are displayed as thumbnails in your timeline, saving you from visiting the webpage just to see what the image is about.