wheeee
It's a 3-D object in a PDF! Fun! And you actually made me install a new Adobe Reader in order to see it!
Astronomers, publishers and computing experts claimed a "significant milestone" in the New Year's Day edition of heavyweight boffinry journal Nature, saying it is "the first time a major scientific journal has used a 3-D PDF of graphics in an article". The 3D pdf format, which can be displayed by any computer with up-to-date …
Spare me the hyperbole... Nautre were nowhere near being first for this:
Trends in Biochemical Sciences, ***Sept 2008***, Kumar et al. Grasping molecular structures through publication-integrated 3D models.
Currently available as a free download from http://www.cell.com/trends/biochemical-sciences/ as their featured article.
If I recall correctly, another journal might have published a 3D PDF at a similar time too, perhaps slightly earlier.