So what’s wrong with Open Source Software?

In a world of cloud computing, web 2.0, and ever-expanding networks (i.e., I have several hundred people with me at all times just because I have a Ver**** phone plan)…we still seem tied down to primarily vendor-driven solutions for business and government. Is it a Security issue, an economic issue, or a cultural one?

I thought we were all weaving a world wide web?