Lock-in in the name of Security

This is yet another brilliant article by Bruce Schneier. he starts with how iPhone is "bricked" by Apple in the name of security. talks about how vendors try to lock-in users and secure them from the customers.
excerpt -
Mostly, companies increase their lock-in through security mechanisms. Sometimes patents preserve lock-in, but more often it's copy protection, digital rights management (DRM), code signing or other security mechanisms. These security features aren't what we normally think of as security: They don't protect us from some outside threat, they protect the companies from us.