I think that Guy definitely has credibility. His Wikipedia entry (http://en.wikipedia.org/wiki/Guy_Kawasaki http://en.wikipedia.org/wiki/Guy_Kawasaki) mentions

I think that Guy definitely has credibility. His Wikipedia entry (http://en.wikipedia.org/wiki/Guy_Kawasaki http://en.wikipedia.org/wiki/Guy_Kawasaki) mentions several real ventures.