I just recently got an AO722 and installed Ubuntu 11.10. I was aware of some of the problems with the net-book so I set about tweaking things accordingly.
I followed many of the instructions here (specifically the net boot and graphics instructions):
and here (specifically the Jupiter and power regression instructions):
Last night, while installing and going through an update/upgrade, I noticed there were a lot of packages being held back. Included were the new Linux kernal and a whole mess of xorg stuff so I did a
sudo apt-get dist-upgrade. The kernal is 3.0.0-17-generic.
After reboot, the touchpad behaved differently. It is much more sensitive and the pointer is much more difficult to control on the screen. Adjusting the sensitivity and acceleration in system settings does not help so I think something was broken with my last upgrade. I've been looking around on the Internet and have found nothing about this problem.