http://www.itbusinessedge.com/blogs/osb/?p=127

"Adobe to Take Flex SDK to Open Source

Posted by Michael Lindenberger on April 26, 2007 at 11:09 am

Adobe is giving its customers — and those it’d like to become its customers — another reason to stick with its Flex SDK platform for cross-browser app construction. Webpronews.com reports that the company has shifted the product to open source, releasing it under the Mozilla license.

That will sway users who might have been toying with the idea of trying Microsoft’s Silverlight, the article suggests......."