What does that have to do with the topic? Unless you are talking about the mechanical death of twitter.
It is actually hard to say. I think it is definitely less a hype than cuil (does anybody remember cuil?) but I could see people getting annoyed by the number of characters. At the same time, that's what make it efficient. People don't write novels and cut straight to the point.
Not like my current rant
I think it's too soon to judge. To me, it's gonna live some more but won't come close to be the next facebook for example.
It's more a toy than anything else.