Adobe released the first public alpha of their Appolo runtime and SDK and made things clear about their new technology :
Seems like Adobe want to make another JRE experience, but more RIA and AJAX oriented. A bit disappointing to see Adobe’s new technologies going desktop alone, while everything is going web. Available for windows and MacOS, you can download Apollo runtime, SDK, documentation and samples from the product’s page. An Apollo extension is also available for Adobe Flex Builder.