Think about what has happened over the past two years. It's probably hard to even comprehend. Technology has evolved in a huge way since 2008, but few areas have evolved as much as the Web browser space. The competition has heated up in a big, big way. Microsoft has found themselves lagged behind the other guys in terms of features and flexibility, Firefox's popularity has grown, Safari has picked up Extensions support, and Google's Chrome has entered the fold.
Google has also promised that they won't be taking too long a break to celebrate. The next edition of Chrome is already underway, promising to be even faster when it's released in the future. Are you a Chrome convert? Would you consider trying it out now that it's had two years to mature?