PLoS ONE will soon make its debut. They seem to be going strong with 210 submissions since the initial launch on the 4th of August. Last week alone they got 30 papers to review.
According to an email they sent to the mailing list they have now 179 members in the editorial board but they encourage scientists from areas that are not yet well covered in the PLoS ONE editorial board to work with the journal.
They have also added some goodies to download for anyone interested in spreading the word. Grab a flyer, print it and post it up on your work place :)