The Freedreno Gallium3D graphics driver that's a reverse-engineered incarnation of the Qualcomm Snapdragon driver, has support for the A320 graphics core coming along quite well. The A320 found in the Nexus 4 is now running the Freedreno 3D driver and can even handle bearing the load of the GNOME Shell desktop.
Rob Clark, the principal developer behind Freedreno, has the Google Nexus 4 with Qualcomm A320 running atop the Freedreno Gallium3D driver along with XA 2D acceleration over xf86-video-freedreno. The XA 2D acceleration is new to Freedreno and pipes 2D calls over the OpenGL engine, which is needed since the A320 goes without a 2D engine.
The patches still need to be cleaned-up before they can be mainlined, but should be coming soon. More details on Rob's blog and embedded below is a video of Freedreno on the Nexus 4 running the GNOME Shell.