First off thanks professor for introducing me to this guy, After watching his Smart Content video I've been reading all the articles I can get my hands on.
I think what Nick presents in his talk is becoming an evident truth in the contemporary age. Social media is becoming more than just a relay system, its becoming the primary way in which we interact.
I fully endorse his idea that Multitasking is a thing. When people tell me I can't technically multitask I call bullshit. Like Nick says, people's brains are adapting to the new social media tools and I agree that it is for the better.
The next step of social media is to make it available to everyone and figure out some to keep an intimate connection.
Here is an infographic that I like about social media and how it is becoming a primary news source.
http://www.schools.com/visuals/social-media-news.html
Also check this great article on Mashable by Matt Laurie. I think it directly relates and progresses Nick's idea of Social Media becoming a primary learning tool.
http://mashable.com/2010/01/07/social-media-changed-us/