Microsoft OneNote gives you just that: a central place to jot down everything, whether you’re at your computer, browsing the Web, or out and about with your mobile device. You can keep it all in one notebook that you can access from just about anywhere.
Notes that you start on your phone in Microsoft OneNote Mobile are stored on your Windows Live SkyDrive. You can edit the notes in your web browser (using Microsoft OneNote Web App) and on your computer (in Microsoft OneNote 2010). Changes are kept in sync automatically.
Introduction to OneNote Web App
Use Microsoft OneNote Mobile
OneNote Mobile for iPhone