Futuregram is the fast and fun way to send yourself a reminder.
Featured November 2010 in iPad Productivity under New and Noteworthy!
It's a Universal app and so it runs great on your iPhone, iPod Touch, and iPad.
Use it to send yourself task reminders, encouraging words, or jokes. Aside from being fun, Futuregram is streamlined and easy to use. Futuregram works in any orientation, so if you prefer you can use the much faster landscape keyboard.
You can quickly type your message, set the delivery date, and send it into the future. It'll vanish in a flash of light and reappear when it's time.
Futuregram uses the built-in notifications in iOS, so you won't have to worry about using up your SMS or Text messages. You can chose different sounds for your messages and even set an interval for repeating events.
Futuregram sidesteps the overhead and tedium of a complex todo system. It's fun, useful, and hassle-free.
(If alerts and sounds stop working after upgrading to iOS 5, go to Settings→Notifications and make sure that Futuregram is enabled in Notification Center. Also, check to see that the mute switch isn't enabled).