Previously code-named Meer Meer, the new service provides its users with real-time screenshots of browser renderings and includes multiple viewing and diagnostic tools to help pinpoint compatibility issues within a project. The initial set of supported browsers includes Firefox 2.x and 3.x on Windows XP and Mac OS X; Internet Explorer 6.x and 7.x on Windows XP; and Safari 3.x on Mac OS X.
Developers using any other code editor rather than a WYSIWYG tool like Dreamweaver can also access the service, which is launching as a free preview to a limited number of users; though Adobe plans to charge for it at some point. A somewhat similar tool is available from Microsoft as a standalone application and will be available as part of the next release of Microsoft Expression Web as well. Free online tools like BrowserShots have also been available for a while to serve the same purpose; supporting a wider range of browsers but with rather limited features and lacking real-time screenshot support.