Vlambeer has rolled out a new version of Ridiculous Fishing for iPhone and iPad, and I think you're going to love one of the changes in particular: the newly-introduced knife lets you cut your line, meaning you can restart an attempt if things don't look promising. Total time saver!
Also included in the update are bug fixes, new patterns and fish for the Maelstrom -- including Friend Fishes that are tied into Game Center and will show up at depths your friends have reached in their game -- and the option to use custom music. I'll not even bother asking why you'd want to turn off the soundtrack. Good changes all around, though.