Eh, it's referring to base pair variations. The title is on the sensationalistic side when you consider how most lay people will interpret it.

The cool stuff people imagine about in response to the title won't happen until researchers finish figuring out regulatory regions in the DNA; and, how DNA interacts with itself and environment, both spatially and temporally. Regulatory regions are promoters, enhancers, silencers, and insulators, and impact gene expression and regulation.