Technology review 2011: Twitter rules, BlackBerry crumbles and TS Eliot is reimagined.

That’s how the Observer summarised my retrospective look at the world of technology in 2011. I did also write about Facebook’s ‘valuation’, Apple’s extraordinary year, government fantasies about the employment potential of start-ups, HP, Nokia and the role of social networking in political upheaval.

All seen with the 20/20 vision of hindsight, of course.