Deep Notes is a simple hierarchical note pad.
Requirements: For Mac OS X 10.4 or higher
BSEditor: Deep Notes is a simple hierarchical note pad. You can use it to outline ideas, make to-do lists, or whatever else might need jotting down in a list, hierarchical or not.
Its keyboard shorcuts were designed to let you edit, navigate and control your outline without taking your hands off the keyboard, so you don't have to interrupt your creative flow and can get on with typing.