Any apps for android (Evo 4G)??

[Martppc]

I wondered does anyone developing vibrate "pulsing" long (3 to 5 times) and repeat length (seconds) profile to add on or download apps for e-mail and text message alert. As my clock alarm alert in Evo 4G is nice, can it copy or add on email and text message alert option selection lists. It will alert me better than just once vibrate because I am hearing impaired. It will help for others, too.