Will Twitter Join Podcasting on the 'Net Sidelines'?

Ian Lamont writes "Twitter has established itself in some quarters as a must-have communications tool, and its power to connect and even incite people is hard to deny. But does Twitter have long-term, mainstream potential? Or does a poor revenue model and strong competition mean that it's destined to be a sideline Internet technology, much like podcasting has failed to live up to early hype?"