This list is very impressive for those not familiar with Linux, but with one exception, these are all just standard parts of a Linux system. That one exception is the Cell SDK 1.1, and I'd sure like to know exactly what's in that. That could be interesting. And although there is nothing new about the window manager Enlightenment 1.7, the fact that it is mentioned so prominently seems to imply that it's working well on the PS3, which implies that X Windows is working, which implies that there is a working X Windows server. That's good, but it could be closed source, and it doesn't necessarily mean that home programmers can call up graphics primitives.
--Greg
I would certainly hope it has a working X-Server without it you would not have a GUI of any kind.
There are three layers on the Linux display system.
1) The X-Window system which is a network client-server architecture. The server part is your display and the client part is the application that wants to display. Basically the X-Window system allows drawing of graphics primitives on the display.
2) The Window Manager like for example Enlightenment. This is a program that sits on top of the X-Window system and manages windows and their attributes. The minimum you need to run a GUI is the X-Server and a Window Manager.
3) The desktop manager eg. KDE or Gnome. These handle cut and paste, drag and drop, the desktop icons, themeing, system tray and various desktop applets.
You also have the Display Manager which is the thing you log into to get a graphical session. It allows you to run multiple sessions on a Linux PC and if you enable it you can get the XDM screen and log in from a remote machine that has an X-Server eg. a Windows PC with Cygwin/XFree86 for Windows installed. The Display Manager handles login and passes a cookie from the X client to the X server so as to provide access control to ensure that only started by that user can display on that screen, and starts an X session.
I haven't come across any closed source X-Server being distributed with any Linux distribution. The open source ones XOrg and XFree86 are a lot better quality and better featured than the proprietary ones, so few if any use the proprietary ones, except for use on Windows.