Doc Searls makes a great talk on the State of the Net in which he explains how we are reaching the personal data cloud. And also how, also this time, like in the past, with computers, mainframe, networks, mobiles, the corporate world is trying to control those data. And in doing so they limit their usefulness. What gets built outside always becomes more valuable than what is being built inside. Inevitably ending to support those corporations prefer to interface with what is outside than build their own walled gardens.