So, are people rolling their own private microblogging networks yet? And knocking together mobile pages and writing/hacking desktop apps to work with their private microblogging networks yet? It would seem to me to be the obvious outgrowth of the Twitter phenomenon: ambient communication for secret societies.
(Which you can take to mean "gated communities," "dev teams" "people who like their privacy" or "bomb-throwing anarchists.")
Doesn’t replace the gated message-board community, of course, because microblogging is obviously shit for long thoughts. Doesn’t replace Twitter’s old "killer app" of sending & receiving tweets as SMS, either — but I live in Britain, and they turned SMS off for Britain, so I use custom apps like Twibble or mobile pages anyway.
I’d happily run two microblogging desktop apps: one for Twitter, and one for My Spooky Friends Net. And, after a while, I’d probably stop using the Twitter app, I’d imagine.
Just thinking out loud.