Use: Efficiently develop desktop apps that will work seamlessly across operating systems/devices with or without an Internet connection
According to ReadWrite: “Chrome Web Apps open in their own windows, not the browser. But these apps will work offline and can use hardware (memory cards, cameras, drives) connected to the device they’re running on—something that traditional Web apps can’t do. The browser itself doesn’t even have to be running, although the apps will tap into its native functionality.”
While many publishers are developing HTML5-based sites that provide app-like capabilities on any browser, the Chrome Web Apps — because they open outside of the browser and don’t require an Internet connection — feel more native-app like. Of course, users will have to install the Chrome browser on their desktops for the technology to work.