Windows 8 will not support Flash in its Immersive browser, and Windows 8 users are likely going to spend increasing amounts of time there.
Adobe, who makes a significant portion of their income from Flash creation tools, has responded to the challenge to their business in a blog post, saying:
We expect Windows desktop to be extremely popular for years to come (including Windows 8 desktop) and that it will support Flash just fine, including rich web based games and premium videos that require Flash. In addition, we expect Flash based apps will come to Metro via Adobe AIR, much the way they are on Android, iOS and BlackBerry Tablet OS today, including the recent number one paid app for the iPad on the Apple App Store, Machinarium, which is built using Flash tools and deployed on the Web using Flash Player and through app stores as a standalone app.
Adobe is about enabling content publishers and developers to deliver the richest experiences for their users, independent of technology, including HTML5 and Flash. We are working closely with Microsoft, Google, Apple and others in the HTML community to drive innovation in HTML5, to make it as rich as possible for delivering world-class content on the open Web and through App Stores.
We are excited about the innovation and opportunities that are available to our customers and Adobe as the web and platforms evolve across devices, including Windows 8 and Metro.