If you don't have an unlimited texting plan (I didn't used to) you know the feeling of always calculating in your head about how many texts you've sent/received each month and how close you are to going over you monthly allotment.  It is a balancing act that often results in you paying several dollars up to more extreme cases of several hundred just for using a few bytes of data each time.  Pricing per text message is rediculous in itself, but that's a whole nother story.  Blackberry user...