Google Chrome contains many features that can be harnessed by webmasters to deliver a better end-user experience. Google Chrome comes with Gears built in, which allows webmasters to take advantage of APIs such as offline storage. In addition, Google Chrome allows your web application to look and feel like a "desktop" application, as users can launch Google Chrome in a mode with a minimalist UI, featuring nothing but a title bar.
Google Chrome also uses a brand new JavaScript engine (V8), which is much faster than existing JavaScript interpreters. This means you can create more complex and more intensive AJAX applications with fewer speed and processing constraints. Finally, Google Chrome is built on top of WebKit, so Google Chrome users will benefit from the CSS3 features being added to WebKit as those features are released.