Presentation Prompter for Mac

From NextForce Software:

Turn your Mac into a teleprompter. Presentation Prompter scrolls text smoothly at an adjustable rate. Speakers, actors, reporters, singers, narrators, and others can use Presentation Prompter from practice to production. Features such as two mode operation, fully-styled text, automatic text control, forward and reverse scrolling, scrollwheel fast-forward and rewind, bookmarks, images in documents, single screen mirroring, and a beautiful aqua interface set Presentation Prompter above traditional teleprompters. The software can also be adapted to work with a variety of production styles and has customizable hotkeys and preferences to automate common operations.

Version 4 is a complete rewrite in Cocoa.