Slowly but surely, PLoS One is starting to roll out the eagerly awaited article-level metrics. Of course, I feel more than a little flattered that our paper on "Order in spontaneous behavior" is one of the first articles showing off the new features. From the information the PLoS One Academic Editors received:
Each article now shows three different tabs:

1. Article: Much of the content in the right hand column has been moved into the other tabs to make way for new features. Links to the appropriate issue or collection appear in the right hand column of the article page. In PLoS ONE related subject categories have been added to the right hand column to allow easy access to other related articles. We've also designed the right hand column to allow for some new feature growth in the future (e.g. user tags).
2. Related Content: Data from external sources is provided on the this tab. Sources include the number of citations from PubMed Central and Scopus; the number of bookmarks from CiteULike and Connotea; and the number of blog posts linking to the article from Postgenomic, Nature Blogs and Bloglines. More sources will be added in the future.
3. Comments: All of the comments, minor corrections and formal corrections are easily viewed in one location.

More details on the upgrade to the latest Topaz version can be found on the PLoS blog. This is an exciting development! These new features (and more will be coming!) put PLoS One at the forefront of the new developments leading to actually measuring the effect individual articles have on the scientific and general community, rather than just assuming that some individual article must be 'good' simply because it was published in a journal where some other 'good' articles have been published.