Yet another web developer here but I have a different point of view on the browser subject.
Yes, most surfers out there are training their eyes on one of IE or Netscape. But one of the reasons for that is that the majority of web developers out there are still creating crappy web sites that rely upon the non-standard behaviors of these 2 browsers. Anyone who wants to try something different gets stuck when they hit a web site coded for the idiosyncracies of either browser.
Since both "modern" versions of IE and Netscape are much more standards compliant than they used to be, web developers can now (if they wanted to) create sites that will work well in either browser (and with
less work) as well as any other standards-compliant browser by simply taking a little time to learn the standards and to stop coding pages that only work in the proprietary browsers.
The web app that I work on is targetted to "modern" IE and Netscape versions (that is IE5.5+ and Netscape 6.x+), but I develop it using Mozilla as my test browser so that I don't fall into the trap of using proprietary functions in the pages.
As such, the web app should just work in as many compliant browsers as possible and allow surfers to throw off the yokes of the Big2 browsers.
The references at
www.w3schools.com are also very helpful in determining what's standards-compliant and not.
Just my 1/50th of a dollar,
bear