Free Silverlight-based Web OS
While there aren’t too many popular Web OS systems around, I’ve stumbled upon one that’s actually quite promising. Dubbed ‘SilveOS’, it’s built in Microsoft Silverlight, and touts features such as a YouTube application, browser, Twitter client, and other apps. The system allows for other applications to be installed, however they must be also made in Silverlight and be hosted online. The site allows you to register for an account to save your settings and files, and while it’s a blatant Windows clone, it’s still quite a piece of work.
Log on as a guest or register for SilveOS here.