Adobe AIR finally runs on my lap­top. After an install on Jaunty Jack­a­lope 64-bit there is a final man­ual step to take to copy a library.

Full descrip­tion here: Installing Adobe AIR on Ubuntu Jaunty 64-bit

Steps:
Down­load installer from http://get.adobe.com/air/.
Make exe­cutable: chmod +x AdobeAIRInstaller.bin
Step through install process

Final miss­ing step:
Copy library: sudo cp /usr/lib/libadobecertstore.so /usr/lib32

Now I can try the Tweet­Deck twit­ter app! Well, that requires more steps which can be found here:
Installing Adobe Air 1.5 + Tweet Deck on Ubuntu 9.04 64 bit

Tweet­Deck works! Nice app!