Was that really the prime motivator in joining MS? How do you mean "be a voice for startups"? Cool.
People usually cite this reasoning for joining the government -- an organization whose mandate is toward the greater good of its people, but I've never heard it applied toward a corporate entity, whose mandate is solely profit.
Would you mind posting a bit more about your motivations and thinking? I would really like to hear.
So Microsoft VPs want to find out why people do not accept their products. Could be a good thing, if they would then insist on improvement of the products guided by the data that the "dev evangelist" provides. You, though, make it sound like it's a bad thing. Care to explain?