I've always had a problem with the term "jailbreaking" when it comes to Apple's mobile devices. The term "jail" came into usage long before iOS in reference to isolated user-space instances, but that old meaning seems to have been obscured through both overuse and continued attempts to paint Apple as a dictatorial company interested only in hamstringing users of its devices. I've let "jailbreaking" slide until now because even though I think it's a loaded term, it's also a nice, short way to describe the act of opening
