Origin of SMS language :P and basic abbreviations

Want to know the origin of SMS language? :p
Fine, let us consider the below two statements...

1. 140 characters limit

2. 140 crctrs lmt
Option 2 gives same information as opt1.. But, 

in 20% less characters and 

in 12 clicks (on T9 keypad) which is lesser than Option 1

with zero concern about spellings and 

just a little idea of English phonetics would help you understand the message.

So you see, non-sense makes sense.

Since few are not very good at SMS language it really is stressful when someone sends a mail or an sms in this language and also they have to hurry along to Google to decipher the words....
So, below are the basic abbreviations which are used in our messages/chats.....

&	And
2	To
2nite	Tonight
R	Are
4	For
4U	For You
F9/fyn	Fine
HBU	How About You
HRU	How are You
MSG	Message
GTG	Go to Go
Coz	Because
Crzy	Crazy
CU	See you
TTYL	Talk to you later
ASAP	As Soon As Possible
PLS	Please
LOL	Laugh out loud
AYT	Are You There
B4	Before
NE1	Anyone
TY	Thank you
G8	Great
BTW	By the Way
BTWN	Between
FYI	For Your Information
GM	Good Morning
IDK	I Don't Know
GN	Good Night
VGM	Very Good morning
TYVM	Thank you Very much
THNX	Thanks
ASAP	As soon as possible

OMG

Oh My God

And rest is left to God as in how the other person understands the message sent!!! :P

Thank you for reading my post!! :)
Please do comment if there is anything to add/ change... your suggestions and feedbacks will be valued and highly appreciated!!