Before I even get started, a quick side note. I initially assumed I should write LINQ [all caps] since it is an acronym (from what I recall), but I decided to go with the .NET Framework namespace capitalization instead. I should have learned my lesson with AJAX or Ajax, or however you want to write it. ;)
When I first heard the title Technical Evangelist I thought it was a joke. Then I found out it was a real position, but I still didn't understand what it was about. It took about a year for me to truly get it, and in the end.. it was simply a description of what I was already doing.