Because the graphene used in this study was conductive (i.e. no band gap), the demonstrated voltage-current characteristics were strange compared to Si. Specifically, current continued to increase linearly with drain voltage up to device breakdown. Si-based transistors typically have a point, called the threshold, at which a current cannot increase despite increasing drain voltage.

Interesting but it does have that over-hype feel to it

I feel an episode of Tomorrow's World coming on.