What I really mean by 'new' is that it's been in the news lately, in fact so recently that some of our tools won't pick up the most recent material. The web site "Bugs in the News" has a press relese ("New News about an Old Bug"), there's a DOE press release ("Microorganisms's genetic information yields scientific surprises, potential biotech applications"), Nature has a 2-page article in the 26 September issue (pp299-300), and Science was the location of the publication on 23 August of Bult et al. "Complete Genome Sequence of the Methanogenic Archaeon, Methanococcus jannaschii". This is very big news. Says the Nature article:
Bult et al. has given us, for the first time, the complete genetic complement of an autotroph: an organizsm that is able to synthesize all its required biomolecules from inorganic compounds. It is at once sobering and exhilarating to realize that among the 1,738 M. jannaschii genes is all the genetic information that is both necessary and sufficient for completely independent cellular life.
(Michael W. Gray, in Nature 383:300)