Google co-founder Sergey Brin says the new Chrome Web browser is <A HREF="http://www.eweek.com/c/a/Linux-and-Open-Source/Googles-Sergey-Brin-Denies-Chrome-is-The-OS-For-Web-Apps/?kc=EWKNLENT09052008STR1">not the Web operating system many people see it as,</A> but acknowledges it will get more robust through the open-source community under the Chromium project. Microsoft and other search engines and Web services providers must be wary about this evolution in application development. Google may be treading lightly with Chrome now, but the browser, combined with Google's search and Apps, could end up being a big threat to Microsoft Windows' market share.