Adobe AIR (Adobe Integrated Runtime) is based on the technology that allows creating desktop applications (for general purposes) using web technologies like HTML, Ajax or Flash. Developers can take advantage of their knowledge in website creation to develop multimedia applications. In other words, from a web application they can create a general application with the contents and utilities of a web application.
The program is freeware, distributed to any users of software created with AIR, or developers that desire to create desktop applications from web projects. That means that you don’t need anything special to get the benefits of Adobe AIR capacities.
The main advantage of the program is that the applications created with AIR are multiplatform. That means that a program could be used in any type of computer, no matter what the Operating system that computer has. With this Adobe is trying to solve one of the main inconveniences for a developer: create an application that would run on any computer/Operating system. They are still working on solving all problems of incompatibility that may exist when a program is running on different systems.
In this link you could find some of the applications developed with AIR: