Why going private won’t save Dell or BlackBerry

Covering tech these days can be a lot like watching an episode of “The Walking Dead.” Zombie companies stagger around, taking bites out of panicked shareholders and about-to-be fired employees. In the cases of Dell and BlackBerry, it wasn’t an unexplained burst of interstellar radiation that’s responsible, of course — it was the iPhone and the subsequent mobile revolution that neither company grasped in time.