Bingo! It's only a matter of time another service takes over. I would be extremely surprised if at any given time there wasn't at least two startups in the dark

Bingo! It's only a matter of time another service takes over. I would be extremely surprised if at any given time there wasn't at least two startups in the dark trying to be the next twitter. Just waiting for the right moment for a large group of people to get pissed off at twitter to launch their service to the public.