I know Evan well from serving on the board at StatusNet (aka E14N / Identica ) from 2009-2011. I learned a great deal working with Evan. His passion for free software, open content, and open companies is courageous, inspiring and contagious. The term "visionary entrepreneur" is typically overused, but I don't think that is the case here. Evan has a consistent vision for the world he wants to build and has been working relentlessly to make it happen.
Jack was a great board member for StatusNet. He applied industry experience and a community-minded business approach that kept us honest with ourselves and our customers.