Good pdf on Enterprise Architect

My professional goal has always been to be an Enterprise Architect. I have been a mainly playing the roles of a developer, team leader across various domains but I had the privilege to be part of the Architecture team in my previous company (a fortune 500 company involved in healthcare). The organization was totally focussed on Zachman framework. But I would find it hard when there were frequent discussions between associates across organizations about the use of technology (Microsoft vs Sun vs Oracle), I think it's really bad when the CTO team gets in to details of implementation. This article in objectwatch provides a nice overview about enterprise architecture and points out of the failure of existing frameworks. I found most of them to be true. I hope you agree with my point :)