Language Destruction or Evolution

It began with the ubiquitous SMS. Now it has spread to any forms of writing, formal or not, online or offline. I'm not talking about the communications technology itself but the language used as the result of this technology. It has become so fashionable to use abbreviations in our wireless text messages that even in formal writing, we may inadvertently write in the same way we send SMSes.

"I need to see you A.S.A.P". Looks/sounds familiar?

Then, we also have other common ones like:

• OMG
• BRB
• BTW
• WTF

There are other not-too-common ones, at least to me they're uncommon like:

• TTYL
• BFF
• ROTFLWLITA

...and, just a minute ago, I received a message that read:

"GBU and ur family" - It took me a few seconds to guess what GBU is.

Is technology destroying the language we use, or is this what we call the evolution of language?

By the way, who owns a car with a registration plate bearing the number "WTF 69"?