Text message and chat language are little by little accepted by society and dictionaries! The British Dictionary Collins has accecpted some of these terms, such as: b4 (before), gr8 (great) , lol ( laughing out loudly).
Nevertheless, the Spanish dictionary of the Royal Academy has not accepted any yet.
Language is not a static system, it changes with society. We do not write the same way people used to let's say... 1500.
So, perhaps we are facing a big change in writing. Don't U think so?
There is a very funny game, click on this link:
A new window will appear with a mobile phone. On the screen you will read messages, but they are not fully written. That is what you have to do: write the message. God luck and enjoy it!