Hi all, I was able to successfully install Ubuntu 12.04 pretty easily.
My issue is with the touchpad. In this: https://help.ubuntu.com/community/MacBookAir4-2
It says that the touchpad works out of the box. I suppose "works" is a matter of interpretation. It's far from stable. Scrolling on a web browser or other app either via two finger scroll or clicking and dragging the scroll bar causes the cursor to jump all across the screen.
Selecting text causes the same issue. Some times tap to click will respond slowly or not at all.
I've tried installing some of the config files that the wiki suggests but to no avail.
Does anyone have a MacBook Air running 12.04? What's your experience. Did you have this and find a solution. If Google is my friend, it's not being a very chatty friend with this issue. Not finding any results.