The Demise Of Written Language

I just read this interesting article at www.wired.com about the supposed demise of text based blogs.

The author's main point, if I interpreted it correctly, was that there is no longer the same market for long drawn out prose as there was several years ago, and other Internet media that is more image based, such as Flickr, or light on text, such as Twitter or Plurk, is the way of the future.

These platforms, with their limited space for words, enable the not so proficient writer to be on the same level as the skilled wordsmith. This got me thinking about the typical e-mail by many people: there are many abbreviations used, and not much punctuation or capitalization.

Should we be concerned about the generally accepted lack of "proper" language use, or should we embrace this effective and efficient style of the future?