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.
Some companies like AOL and eBay are using Adobe AIR to create exciting new applications that allow you to use their services on your desktop.
You can see its uses on yahoo widget.
Download this software for free
Source: http://www.adobe.com/products/air/
