I'm sad to see them dump Unity-2D so quickly. I found Unity-2D using Compiz instead of Metacity was a slick and speedy Desktop Environment that ran circles around Unity-3D, at least in my experience on integrated graphics. i'm amazed Canonical is willing to accept a significant drop in system performance for what amounts to a menu integrated with a launcher. Without the ability to use Unity-2D, i'll be forced to use another distro and I would bet I'm not the only one who'll be jumping ship.
No announcement yet.
Unity 2D To Go Away In Ubuntu 12.10