"Where are they going to go? Back to email, IRC, or Blogspot? I doubt it. To Twitter's cheaper competitors? How are they going to stay in business?" Where do t

"Where are they going to go? Back to email, IRC, or Blogspot? I doubt it. To Twitter's cheaper competitors? How are they going to stay in business?" Where do they go: facebook, orkut, linkedin or any other social network for 'status updates'. Some free service for 'realtime news'. There's no business secret or technical trickery on twitter - it's really a simple and reproducible service... On how to survive: by using VC money for years, maybe? Expecting to get bought by GOOG (oops, I think jaiku already did this)? Not making any money at all (exactly what twitter does today)?