Law firms and businesses operated for a long time with out email. They were successful without email. There is no reason to think that email is either the zenith or the endpoint for business communications. Email is an incredibly powerful tool. But it is a closed system where it is hard to find and very hard to reuse information. Take a look at your email. Wouldn't you like to have the answers to a lot of those questions saved for later use? Are people trying to turn your email into a content repository?
Based on those propositions, Luis outlined what he was trying to do in I Freed Myself From E-Mail’s Grip. The unexpected consequence of the article was that he received a deluge of emails from people sending him the article or their thoughts on the article: Giving up on Work e-mail - Status Report on Weeks 15 to 20. (I am a true believer; I sent my message with Twitter and put up Saturday's blog post.)
The article about reducing email even ended up on the top ten list of most emailed articles on NYTimes.com.
Keep in mind that the goal is not eliminate email. It is a very powerful and very useful tool. But it is not appropriate for every communication.
"I am just saying that it needs to be re-purposed and used for what it was meant to be in the first place: A communication tool for one on one conversations of a sensitive, private or confidential nature. The rest should be going out there, in the open, in the public space(s), transparent and with an opportunity for everyone to contribute!"