IF. . . U. . . do no ndrstnd dis sntns u nd 2 lern txt.lingo. If you do comprehend, you are obviously already in possession of a full understanding of the mysteries of text-speak and need read no further.
For the rest of us, perhaps those of a more mature persuasion, there is Glasgow's Strathclyde University and that institution's attempt to rescue us from the darkness of Earth B.T. - the world Before Text.
Mobile phone users of a certain age are queuing up to join university seminars that unlock the world of texting.
Such has been the demand that the courses are now a featured part of the university's remit.
" I have more minutes on my cell phone plan than I can ever use,...Maybe I'm missing something here, but text messaging seems to be the most ridiculous waste of money ever invented." You are wasting money (unless you pay under $5 per month) because you are not using all of your minutes on your cell phone plan, while people are starving to death.
Probably because your voice calls are quite cheap in the US and you can easily afford it. In other parts of the world speaking on a cell phone is quite expensive and a text message is a relatively cheap alternative.