The Adobe® AIR™ runtime enables you to have your favorite web applications with you all the time. Since applications built for Adobe AIR run on your desktop computer without a web browser, they provide all the convenience of a desktop application.
In short, Adobe AIR means applications that are easier, more powerful, and more fun to use.
Adobe AIR is a cross-operating system runtime that lets developers combine HTML, Ajax, Adobe Flash®, and Flex technologies to deploy rich Internet applications (RIAs) on the desktop. Adobe AIR allows developers to use familiar tools such as Adobe Dreamweaver® CS3, Flex® Builder™ 3, Flash CS3 Professional, or any text editor to build their applications and easily deliver a single application installer that works across operating systems.
Visit the Adobe website to learn more.