Scoble: Twitter etc are the next email
fastcompany.com
fastcompany.com
no file extensions, no privacy/crypto, no room to actually develop an idea, doesn't plug and play with other services (web apps like highrise, scripts that process mbox files, cellphones, ...). yeah, it's an email killer alright. especially when you go to send a message and you're greeted by a LOLcat that says you can't do what you want to do because they're dumbasses who don't know how to make a rapidly growing service scale.
To me Twitter is the perfect example of the echo chamber.