Adobe AIR (Adobe Integrated Runtime) 1.5 was released last December. While not a 64 bit app yet, it is very easy to get the AIR 1.5 working on Ubuntu 8.10 AMD64 version.

1. Install needed libraries
sudo apt-get install ia32-libs

2. Download the installer
wget -c http://airdownload.adobe.com/air/lin/download/1.5/AdobeAIRInstaller.bin

3. Install AIR
./AdobeAIRInstaller.bin
(note may need to chmod +x AdobeAIRInstaller.bin)

4. Copy extra Adobe library file
sudo cp /usr/lib/libadobecertstore.so /usr/lib32

5. Install AIR apps via web.

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