Adobe AIR 1.5 for Linux released
Adobe AIR, by the way, is a platform for running certain web applications as if they were desktop apps, no browser required. A few popular AIR apps are Twhirl, a desktop Twitter and micro-blogging client, and ReadAIR, a desktop client for Google Reader.
Adobe officially supports Ubuntu, OpenSUSE, and Fedora Linux distributions, although the software may work with other distros.
Installation can be a bit tricky. You can't just click on the installer file in most cases. Rather, you need to open a terminal window, locate the installer, and type "sudo ./AdobeAIRInstaller.bin." If that doesn't do the trick, try typing "sudo chmod 755 AdobeAIRInstaller.bin" first.