- Circus Ponies Notebook, (paid, $50) which is very different from OneNote but is a good note taking environment and is quite clean and has some good features
- And if you really need some insane power: Curio, (paid, $100) where the basic concept is to emulate the power of a whiteboard. It includes things like mindmaps, tables, linking between boards, etc. The features list is insane.
- Growly Notes, (free) which actually partly emulates how OneNote works: http://growlybird.com/notes/index.html
- Circus Ponies Notebook, (paid, $50) which is very different from OneNote but is a good note taking environment and is quite clean and has some good features
- And if you really need some insane power: Curio, (paid, $100) where the basic concept is to emulate the power of a whiteboard. It includes things like mindmaps, tables, linking between boards, etc. The features list is insane.