Is the browser taking over the OS

As part of my work with the social vpn project, I have to design various interfaces. My first interface design was using Windows Forms, but I could not get that to work with Linux. Also, since the social vpn project uses social networks, we decided to adopt a web-based interface. Hence, over the past week or so, I have been looking into the different programming alternatives for web-based applications. I came across the most popular Javascript, as well as ActionScript, and .Net Silverlight, as alternatives. All of these languages allowyou to communicate with other applications through HTTP requests. So this combination essentially provides an environment where many types of applications are possible. With the arrival of Google chrome, there is a strong motivation for web-based applications (either client side or server-side or both). So in the near future, a user would only need to install a browser in their OS, and they will be able to do just about anything through web-based applications. I would like to acknowledge that desktop applications will still be necessary, but there is tremendous appeal for UI developers to adopt the web browser as the new UI platform. All that's left now is the Google Web OS.