What connects the mobile phone in your pocket with the web of surveillance cameras that span the world? Ten years ago mobile phones were the size of bricks, as heavy as a bag of sugar and the property of only the very rich. Now they are everywhere, smaller than a credit card and lighter than a Mars bar. But what shrunk the mobile phone, and how come we all have one? Join Tony as he explores the chemistry that connects people and asks what does the electronic chemistry have in store for us?