Xobni, a Y Combinator company, is a good example. They chose to build on Microsoft long before I came along. But, once we connected I was able to help them get access to software, technical support, consulting, and lots of PR and exposure to MSFT, the press, VCs, etc.
I am not a "marketing" or PR guy. I help startups and developers get things done, get them help when they ask, etc.
In my post I highlighted some of the things I noticed about the Google alternatives. I don't think I went al the way to say Google is better in every case and those Microsoft products are bad. If I left that impression I am sorry.
There are lots of choices. No one tool or product will be the best in all possible use cases. Work loads and requirements are different, and the choice of tool or platform can vary. My job as an evangelist is to make people aware or what exists, and make it easy for them to get access to the help they need.
Thanks,
Don Dodge