I have been informed that I was mistaken about when Digital Science Fiction will be accepting new submissions in a previous post. The submissions for Anthology #5, which will be published in January 2012, have all been selected and will be edited when #4 is complete. On the other hand, submissions for Anthology #6, which will be published in April 2012, have not been selected and will be open for new submissions as soon as #4 out and #5 have been edited.
I apologize for my misunderstanding. Apparently I am not as omnipotent as I always tell myself ;-)