But they're entirely the point! You can not say on one hand that Samsung is incapable of differentiating their product, and then wave away all the ways in which

But they're entirely the point! You can not say on one hand that Samsung is incapable of differentiating their product, and then wave away all the ways in which their product is differentiated. You can unless the difference is attributable to Samsung. The back button was present on Android prototypes in 2007. Samsung didn't hop on the Android bandwagon until 2009.