I hear your point, but what becomes the goto place for live events on the internet? Does a company with an established brand (like Google) attempt to step in with its own clone service?
I just can't see this form going away. A public-by-default, one-to-many microblog service has proven to be valued by a substantial userbase.
I have to think that the "next Twitter" could disguise itself as a sufficiently fresh take in order to gain enough trust from enough users.
(I upvoted you, btw.)
