- full integration with Google web services, such as Gmail and Google Maps; in other words, more like a suite than a simple browser (see Seamonkey)
- new features added with extensions
- full support to HTML5
- improved performance
Is it enough? I guess so! But the most exciting things are yet to come (Geolocations API, Microformats, just to name few). Time will tell if Chrome will get on the top of the browser market or be just another fad.