Here's how to install Ubuntu 12.10 Quantal Quetzal on computers that don't support PAE. The instructions have been tested on the default Ubuntu 12.10 ISO (with Unity), but they should work with any Ubuntu flavour like Lubuntu, Kubuntu, Xubuntu and so on and probably Linux Mint 14 as well.
New Icons For Ubuntu Software Center, Nautilus, Software Updater And Unity Launcher Revealed [Ubuntu 13.04]
VA-API is an open source library/API which enables hardware accelerated video processing. It uses the GPU to accelerate video processing in order to offload the CPU.
Supported hardware includes Intel HD Graphics and G45 chipsets and newer as well as AMD Radeon GPUs (there's also a Nvidia VDPAU backend for VA-API).
Primus brings better performance and less power consumption when using Bumblebee, by replacing VirtualGL. According to the Bumblebee G+ page, this has the following advantages over the optirun (VirtualGL) solution used by default in Bumblebee:
XBMC Media Center, a free, open source digital media hub and HTPC (Home theatre PC) software has reached version 12.0 beta 1.
Besides new features and improvements, the latest XBMC 12.0 beta 1 codenamed "Frodo" is now available on some new platforms like Raspberry PI or Android.
Avant Window Navigator, a very popular dock a while back, has been deleted from the official Ubuntu 12.10 repositories, so to make it easier to install, I've uploaded it to the main WebUpd8 PPA.
using the hybrid suspend method from this article, the system initially enters suspend which is quick to resume and after the time you set, the system hibernates so it no longer uses any battery power.