This study details how they are researching the structure of insulin binding to it's receptor. This is good in that they can now begin to design an insulin mimic drug that will not need to be refrigerated or injected, so it will be easier for current diabetics to take care of themselves; in that once they know how to activate the insulin receptor like natural insulin does, they can make a more stable drug to mimic insulin's effect without actually using real insulin, which is a complex and fragile molecule (hence why it is difficult to produce and requires refrigeration).
But, this is not important to addressing the underlying causes and cures of diabetes. I expect it will have little impact on anyone on the primal diet as this diet intrinsically prevents and cures diabetes already.
More exciting would be when conventional wisdom gets off this damn low-fat kick and finally addresses high carb diets, and the diabetes caused by them, as one of the biggest health problems the world faces currently.