It is the ultimate conundrum. Your CEO sends you digital clippings about how other companies are getting their CIOs to do all kinds of cool and innovative projects by pushing the technology envelope. The implied question is: what have you done for me lately? So you deploy some Web 2.0 technologies, let a couple of the kids in the bull-pen connect their iPhone to the enterprise network… and the next thing you know, the crew cut-wearing information security officer is at your door, asking if you've lost your marbles. There are no easy answers when it comes to managing this tension, which leaves the issue hanging as just another intangible you have to figure out. In today's edition, we cover both sides of this ongoing story in our technology section. Who's knocking on your door? - Patty