Samsung hasn't won the droid war in UK. This article seems to be based on the mistaken premise that America is a microcosm of the West.
I have spent time on the Tube here is my personal observation: roughly 40 percent of commuters have iphones. Androids all look similar, but i don't think more then 20 percent of Tubers have samsungs. This is based on dozens of separate observations. I will assume that Tube goers are representative of the whole uk to a large extent.