Microsoft has released OneNote, which is its first Microsoft Office application for iOS devices. OneNote is a note-taking application, which is very popular with Windows tablet users. With OneNote you can create and view notes and also sync them across multiple platforms and devices. Created notes can contain text, pictures, bullets and checkboxes. To use the application, you will need a Windows Live ID.
OneNote is compatible with the iPhone and iPod touch running iOS 4.2 or higher. It can also be used with the iPad however it is not a universal binary so will not be the greatest experience. The app is free for a limited time only and currently only available in the US App Store.