Adobe Air
Adobe Air brings Flash and Flex to the desktop.
With the Adobe® AIR™ runtime, you can deliver branded rich Internet applications outside the browser that give you a closer connection to your customer.
Adobe AIR uses the same proven, cost-effective technologies used to build web applications, so development and deployment is rapid and low risk. You can use your existing web development resources to create engaging, branded applications that run on all major desktop operating systems.
The benefits are extensive. By using Adobe AIR as part of your RIA strategy, you can boost productivity, extend your market reach, enhance customer satisfaction, improve customer retention, lower costs, and increase profits.
(By Adobe, Read the full overview on Adobe Air and RIA)