The installation is quite manual so far in Linux. First go to Adobe labs and download the alpha release.
![Adobe AIR Linux.png](http://lh5.ggpht.com/awasim/SANirWOwmLI/AAAAAAAAAFk/MmlDq2TqUvo/Adobe%20AIR%20Linux.png?imgmax=800)
Run the commands in the above image to install the runtime. Once installed go to twhirls website and download twhirl.
![Adobe AIR Linux 1.png](http://lh4.ggpht.com/awasim/SANjMGOwmMI/AAAAAAAAAFs/2jpCxdJmXPI/Adobe%20AIR%20Linux%201.png?imgmax=800)
I clicked on the "Open with Adobe AIR Installer", and from their AIR handled the installation prompting for a few options. The applications got added to the desktop, but didn't show up in the KDE Menu. Once started their are some display issues as you can see below:
![Adobe AIR Linux and twhirl.png](http://lh5.ggpht.com/awasim/SANkLWOwmNI/AAAAAAAAAF0/Zeo9JmYbTow/Adobe%20AIR%20Linux%20and%20twhirl.png?imgmax=800)
I guess the black area around the window is where the shadow for the window should be.
Not as easy to install and get going as in Windows/OS X but the experience is not that bad at all.