What exactly is Adobe Air? I've seen a lot of people talking about it and I've even seen applications for it but I'm still not entirely sure what makes it unique or how it is different from other languages. Can someone please give me the concise version from a programmer's point of view?
Edit: I wasn't familiar with Flex so I found this nice explanation: http://www.onflex.org/ted/2008/01/what-is-flex.php