David Barnes (programmer)
David Barnes is a technical evangelist for IBM and leads IBM's evangelism efforts around Web 2.0 technologies.1
He was an IBM Team OS/2 member, nicknamed "The OS/2 Evangelist", for his work in the user-level enthusiasm movement. He was also IBM's spokesperson for the 1996 Olympic Games.
Barnes has appeared in different IBM commercials 2, and has often presented new IBM technology in interviews and at press conferences and conventions. 3 4