Like it or not, email is still central to the vast majority of workplace communications, so we suppose it was only a matter of time before professional network LinkedIn integrated into your inbox. That time is now. LinkedIn Intro is a new service that brings folks' LinkedIn info accessible directly from the iPhone's email app. Essentially, this means that an additional pane will appear in individual emails just below the subject line that shows a person's LinkedIn profile picture, title and employer. Tap that pane, and it expands to reveal the rest of their info, like employment history and education -- and, you can add people to your LinkedIn network straight from your email. Sound good? You can sign up for Intro at the source below, and see it in action in the video after the break.