This app can be used for:

- Track Actions using the finish state on each note.
- Brainstorming sessions to find out problems and solutions.
- Coming out with new ideas.
- Drilling down on thoughts and ideas
- Collecting notes
- Organizing notes as in a mind-map
- Highlight notes with multiple foreground & background colors
- Organize notes into multiple sections

This is an unlimited version. It allows any number of colored notes, finish states.