Silex is an open source RIA that can be used to build Flash Web sites for Flash Player 7, 8, 9, and 10. It is a CMS which can handle a wide variety of media, comes with an online WYSIWYG editor, automatically generates deep linking for your SWFs, and creates on-the-fly HTML versions for each Flash page thus making your website more SEO-friendly.
A couple of other features that I did not understand are making a cd-rom, installing cd or a web-tv, displaying databases content and touch screens.
It has something to offer everybody whether you are a novice, web designer, ActionScript and Flash developer or a webmaster.
Silex was started nearly ten years ago, constantly expanding to further frontiers. Apple invited Silex to be presented at WWDC 2005 and the 2007 Apple Exhibition and has especially grown rapidly during the last couple of years since moving to Sourceforge. Recently, it has been selected as the project of this month on Sourceforge.
Silex is freely available through GPL and requires PHP5 and at least Flash 7.
The project is looking for development and peripheral support. Visit the forums for specific information. You can also ping Ariel, say post a comment here, and I am sure he will be gland to hear from you.