Twitter has Jumped the Shark. O RLY?

This dude seems to think that Twitter is passe. Am I that out of touch, or are we talking ADHD?
He does raise an interesting point about how online users migrate from one area to another, much more quickly than before. As if newspapers don't have a big enough problem...
If the #'s are any indication however - Twitter is now @ 14M unique visitors a month and on a bullet - it is now reaching the masses, not just the geek snobbery.
I'll try and throw in some actual literary references going forward. Yes, I know how to read books.