AirPrint on Ubuntu

How to print from iPhone/iPad (iOS 4.2) via Ubuntu

I just noticed that with the latest 10.6.5 update, Apple at the last minute disabled support for printing from iOS 4.2 devices to shared printers in OSX. Instead of trying to overwrite new drivers with prerelease versions, I thought that there must be someone, somewhere out there who has figured out how to do this using the fine, free tools available to us. I like open standards, open tools, open source.