Text bombing isn't a very nice thing to do, and sucks for whoever you're doing it to, but it's certainly fun for you! Annoy the hell out of a frenemy, or simply pass the time in your boring Biology class with affably evil fun, by spaming your friend's text inbox with loads of messages.
Text bombing, if done right, overloads your friend's phone and stops him/her from whatever he/she was doing. Tres fun. Check out this tutorial to learn how to text bomb on the iPhone 3G, 3Gs, and 4.