A notification panel will be used for OS and website notifications, so web applications will be able to add their own alerts.

In Google Chrome OS, all applications are web apps. Therefore, in designing the printing experience for Google Chrome OS, we want to make sure printing from web apps is as natural as printing from traditional native apps is today. Additionally, with the proliferation of web-connected mobile devices such as those running Google Chrome OS and other mobile operating systems, we don’t believe it is feasible to build and maintain complex print subsystems and print drivers for each platform. In fact, even the print subsystems and drivers on existing PC operating systems leave a lot of room for improvement.

Our goal is to build a printing experience that enables any app (web, desktop, or mobile) on any device to print to any printer anywhere in the world. This goal is accomplished through the use of a cloud print service. Apps no longer rely on the local operating system (and drivers) to print. Instead, apps (whether they be a native desktop/mobile app or a web app) use Google Cloud Print to submit and manage print jobs. Google Cloud Print is then responsible for sending the print job to the appropriate printer, with the particular options the user selected, and providing job status to the app.

The only problem is that no printer supports Google Cloud Print and that’s why Google revealed some details about the service’s interfaces, hoping that printer manufacturers will update their software and support it. If a printer doesn’t support Google’s service, you’ll need a proxy software for the computer where the printer is installed. Google says that the proxy software will be bundled with Google Chrome.

Google wants to associate your printers with a Google account and manage them the same way as you manage Google Docs documents, so you can share them with other people. Web applications can use APIs to customize the printing options and change the user interface displayed when you start printing a document.