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Often using the right (exacting) terminology can help you define a better solution.
An alarm clock wakes me up fine, but if you came up with something that actually got me jumping from the bed well rested and ready anxious for the day, then you've got something great to sell.
Its far too easy to just ignore the phone or alarm clock and go back to sleep.
Consider adding an optional email textbox or even a link to a page people can come back to later. Even if it's just a Twitter account (inferred from the '@' in the name).
After that, the alarm is much more effective.