Since this wasn't a financial discussion I don't see the point in making such
a fuss about the definition of market share. The point is that 70 to 80% of
the people out there are running Netscape. If you are in the business of
presenting information in as nice a way as possible it may be reasonable to
take into account that 80% of the people out there are using software which
can help make your stuff look better.
paul r.