Give me all of your emails and I'll tell you something about the people involved. In fact, give me your account password and username, so I can do it myself. I'll even change your settings on your phone so all your emails go through me first. It's OK, trust me, I pledge I'll look after your privacy. Except for that time where I lost everyone's passwords. If this sounds sketchy, it's because it is. But it's also a fairly accurate representation of what LinkedIn is doing with its new Intro product. It is the company's equivalent of Rapportive (which it acquired last year) for iOS.