"When buzzwords collide". Using the slogan, and I am not trying to be funny here, "Open Access 2.0", the Public Library of Science (PLoS) has launched a journal to compete directly with Nature and Science, PLoS ONE. The publication fee will be $1250.
It's not clear yet what the "2.0" element of this will be. They talk about commenting and blogging and link to the Topaz Project website, but it says very little, as yet.