Sometime we never really care about basic things and keep making stuff complex, This is what was happening with the browser market, No doubt there are many architectural issues that were present in browsers and desktop was slowly getting outdated according to web.
Google unvield the browser on it`s official blog here http://googleblog.blogspot.com/2008/09/fresh-take-on-browser.html
For my techies friends , Here http://www.google.com/googlebooks/chrome/index.html Google explained every architectural difference between the Chrome , Firefox and IE browsers.
My take for Chrome is that it`s uberfast and very new approach browser . Will test it more and post the updates here