Columnist’s corner: As mobile devices become more prevalent they bring plenty of conveniences but, more important, they pose security threats to enterprises. In Managing mobility, however, Ephraim Schwartz presents an idea. “My solution might go against the grain of everything an MBA has ever learned about how to run a business, but I think new times require new ideas. For me, the secret to managing mobility is to create a single point of contact.” Gov’t: The DoD certainly has some secrets. Among the restricted areas, apparently, is the co-ax cabling that lurks in its ceilings. That and the fact that “all cabling had to be done by the DoD’s own electrical department,” as our Off the Record author learned. Even when something went haywire, security concerns prevented the contractors from checking those cables — enforced by guards threatening lethal action. “Obviously the DoD’s electrical team had never been trained in laying network coaxial cable and was unaware of the issues involved.”The news beat: Confirming months of rumors, Apple CEO Steve Jobs unveils the iPhone. Microsoft patches critical vulnerabilities in Office, Outlook and Windows with yesterday’s Patch Tuesday release. And two U.S. senators rekindle the Net neutrality debate, to prohibit broadband providers from blocking, impairing, or degrading legal Internet content. Technology Industry