Why Is Privacy So Unsexy?

Imagine this scenario: you are walking along one of your favourite streets and you suddenly receive a text message on your mobile phone. It notifies you that your favourite fast-food burger chain has a joint just up the block, and if you come on in, they are willing to throw in a medium-size fries and bottomless jolts of free cola with the purchase of a hamburger.

People seem to get all excited about the GPS capabilities of the mobile device. We were told that the ability for your mobile...