Flud is an Android app for downloading torrents at the top speeds your ISP will allow. This app also includes features like RSS support and the ability to prioritize downloads or select where they are downloaded to.
Ranked in these QuestionsQuestion Ranking
Pro Can be run in the background
Includes "keep running in background" option that can be accessed from the settings menu.
Pro Top of the line UI
Flud uses Holo UI, so everything runs smoothly and looks great.