Adobe is getting its open source credentials in order and has now moved its complete range of supported projects and standards into a single "portal" area which has been labeled Adobe & HTML accessible at http://html.adobe.com/ and http://html.adobe.com/opensource/
The site itself is devoted to information share related to the "tools and services" that Adobe offers in relation to the open technologies being showcased here.
NB: Adobe PhoneGap is a distribution of Apache Cordova.
Additional project examples include WebKit.
NOTE: WebKit is an open source web browser engine. WebKit is also the name of the Mac OS X system framework version of the engine that's used by Safari, Dashboard, Mail, and many other OS X applications.
According to Adobe, the company's Web Platform team is actively contributing to WebKit by focusing on new features related to CSS layout (like CSS Regions and CSS Exclusions), visual effects (like CSS Shaders), and SVG. "We also want to make a WebKit developer's life easier by making improvements to WebKit release engineering, performance testing and automated testing."