Exactly.

Moreover there are reasons why texting evolved as the popular application of the underlying technology SMS, which supports many other forms of broadcasts. (including the killer idea)

Excerpt from Wikipedia

Most thought of SMS as providing a means to alert the individual mobile user, for example, of a deposited voice mail, whereas others had more sophisticated applications in their minds, such as telemetry. However, few believed that SMS would be used as a means for sending text messages from one mobile user to another.

Read on - http://en.wikipedia.org/wiki/Short_message_service

Exactly. The guy writing the article misunderstands why people send messages with text. It has little to do with convenience, or because there is no alternative to it - it's just a form of communication that many people like for whatever reason. I won't make the same mistake and claim that I know why others prefer texting sometimes, but personally, I use it when I want to make a neutral query to someone, when I want to communicate with someone without revealing the tone of my voice, when I want to give a person the opportunity to ignore what I am saying or to delay a reply, etc.

Communication is wide and varied, and SMS is a choice in communication. Trying to replace SMS with voice is like saying that one should replace email with telephone calls. The applications are different, and people use it for a different type of communication.

texting is a form of asynchronous communication who places the greater burden to the sender who has to spend more time typing a message, while a phone call can be faster.

But, text messaging is considerate to the receiver, as it lets the receiver consume the message at their own time, while a call would have to interrupt the person whatever they are doing.

Text is better in very noisy environments, bars/clubs/concerts.

In Europe at least, texting as always been a little bit cheaper than a phone call, and the receiver usually doesn't pay for received messages.

But it's more than just convenience. It's also the impersonal part of the text that makes it so popular. You can write stuff in text messages that would be wierd saying out loud.

Just like me writing this message to you - I can think about what I am writing, revise it, etc.