From the press release on April 6th we have the following

Dr. Alan Dalton, Professor of Experimental Physics at Sussex noted, “The exfoliation of Zenyatta graphite was very clean with the production of mostly monolayer and bilayer graphene.”  Dr. Dalton further stated, “Our initial results using Zenyatta graphene in rubber composites show exceptional motion sensitivity to mechanical stress which is critical for sensor applications.  We will be investigating the use of these composites in several other applications in conjunction with the appropriate industrial partners.”

This quote from Dr. Dalton clearly states that our graphene is very clean and is in the 1 or 2 layer range.  The surface area of graphene will be most dependent on the layers and so we can confidently accept that we are at a very high purity and the highest quality (1 or 2 layer) of real (as opposed to fake or pseudo) graphene.