With Evernote you don't have to worry about bring your physical notes and reminders to different places, as they will always be available. This application stores everything on to an account on the Web, and visitors can use the tool to upload snapshots and grab whiteboards in meetings. The application can be used on mobile phones and desktop computers, which is a nice touch. This version is compatible with computers running Windows XP and Vista and Mac OS X 10.5.7 and higher.