Custom Texting Tones!

[M2Iceman]

Has anyone heard of custom texting tones, sort of like custom ringtones for texting. I text more than anything and most everyone who knows me knows to text me instead of calling and leaving a message. I was hoping someone might know of a program that can do this. It would be nice to receive a text and know exactly who is texting without looking at the phone. Any help would be greatly appreciated.