A quick lesson for anyone who wants to charge more: http://www.vertu.com Vertu make luxury smartphones. They probably don’t work better than any other smartphone. They don’t even need to work as well, since most people who buy them aren’t actually going to want a smartphone. But they still cost about £7000, or about 16.5 iPhones. They’re not trying to make a product that’s functionally better. They’re...