"We"

A few months back, I asked this question on a post:

When thinking about themselves and you, how many of your customers think "We," and how many think "Us" and "Them?"

The readers of tompeters.com had some great comments and insights about this concept. I've spent a lot of time since then thinking about the idea of a "We" relationship. I've had hundreds of conversations with people, integrated the idea of "We" into my client work, and I'm deep into the first draft of a new book on the subject.

What do you think? What are the features of a "We" relationship?