Are you in search of a good reminder app? iOS 5 will come with a built-in reminder app, but perhaps you can’t wait until this fall for iOS 5 to be released. Or, you are using iOS 5′s Reminders, but you want an alternative that is just as simplistic and easy to use. What is the right to do app for you? We take a look at the to do apps that compete with Reminders in this AppGuide.