At FOSSCamp in October, skilled eye-candy expert Mirco Müller (also known as MacSlow) hosted a session about using OpenGL in GTK to bring richer user interfaces to desktop Linux applications.

One fascinating session (and one that shows how FOSSCamp works and why it's so productive) was given by Mirco Müller, who discussed using OpenGL in GTK applications.

Linux GDM is a GDM login screen theme.Gdm (the GNOME Display Manager) is a highly configurable reimplementation of xdm, the X Display Manager. Gdm allows you to log into your system with the X Window System running and supports running several different X sessions on your local machine at the same time. This tutorial will explain how to install GDM theme in Ubuntu.

When you customized your Ubuntu desktop to replace the brown theme, you may have overlooked the login window. GNOME’s login window, called GDM (GNOME Display Manager), can be easily customized by installing themes.

Just check out this to how you can change the whole way in which UBUNTU and all other distros with GNOME look and feel.
Perhaps there are countless developers and even more modifications for every part of Gnome be it Windows, Icons, Splash Screens or the Login Window.

GDM (GNOME Display Manager) is a highly configurable reimplementation of XDM, the X Display Manager. It starts the X session and shows a login window to the user.

Epiphany is the web browser for the GNOME desktop. Its goal is to be simple and easy to use. Epiphany ties together many GNOME components in order to let you focus on the Web content, instead of the browser application. As part of the GNOME project, Epiphany is Free Software.

Ubuntu Karmic Koala 9.10 Beta was released today and includes the previously mentioned:

-Updated Human GDM theme, Humanity icons and new log-out screen
-New wallpapers and GDM theme - The gdm 2.28 login manager is a complete rewrite compared to the version in earlier Ubuntu releases, permitting a more integrated login experience.

GDM (Gnome Display Manager) is the graphical login program which you see when you log-in to your Linux computer. GDM used to support themes and a lot of other customizations - all available through the "Login Screen" option under System > Administration - but the new GDM2 (2.28) which comes with Ubuntu Karmic for instance, doesn't support all this unfortunately.