The retina display is something entirely for Mac users, but the other two features are ones that are available across desktop platforms.
Finally, gamers in general and game developers in particular, can rejoice with the addition of support for the Gamepad API in this new version. Like Firefox 14, Chrome also has a few tricks for gamers. Apart from these three features, there are bug fixes in the new release.
What’s clear is that Chrome isn’t just a fast browser, it’s getting power too and web browsing isn’t the only area of its focus. With Firefox adding significant support for hardware, Chrome isn’t going to let it take the lead. If nothing, the new features mean HTML 5 and gaming are very important at Google and for Chrome’s future as the dominant web browser.