Steve Jobs launched the iPhone eight years ago today to less than universal acclaim. Microsoft and BlackBerry, to mention just two firms, were openly sceptical and gave the 2G upstart very short shrift. Yet not only has the iPhone sold in the hundreds of millions, it has totally transformed the way we communicate. It spawned the ugly word "app" and led to the introduction of the App Store, a way of buying software that now seems so obvious but was revolutionary when it opened.