Harry33 said: Seeker,
gedit, eog and other applications do remain even if they are ported to GTK+3. I was not talking about that.
Gnome-panel will still be available, it's required in Gnome 3 for the fallback if you can't run Gnome-shell, or if you force the fallback.
What I did mean is that there will no longer be an option in default Ubuntu to choose a classic session like it is now. With classic session I mean Gnome2-panel.
People seem to continually get confused by that when it is indicated that something will be removed, when in fact it's not being removed, just not being included in the default Ubuntu install.
Gnome-panel changes a little in Gnome 3, but there is only one gnome-panel that changes from version 2.x.x to 3.x.x so I don't know why you say gnome2-panel and gnome3-panel.
There will be Unity3D and Unity2D sessions. In this context, Gnome2-panel session (classic session) will be discontinued.
This roadmap is, however, not what I want. I would prefer the Gnome3-panel choice too, from official Ubuntu repos.
If Debian provides a metacity+panel session option, it doesn't seem likely that the Ubuntu devs will get rid of the option when they sync with Debian. If Debian doesn't provide a session option for it, I don't know if I really see the Ubuntu devs providing a session for it either.
And since it looks like Debian won't be providing an option for it, most likely if you want that you will have to create a custom session that doesn't use gnome-session for session management, learn more about how gnome-session works so you can use it in a custom session without it trying to load gnome-shell, or log in to the 'Gnome' session provided and set the option for Gnome to use the fallback mode.
There is probably some gsettings voodoo you could do at the command line to set the option to force the fallback mode if you had to.
Gnome-shell has it's own way of providing a panel that is not gnome-panel, the shell's panel is created using features provided by Gnome-shell so not likely to be able to be used independently.
Gnome-panel is only used in the fallback mode in gnome 3 to provide an environment that is the same as the default stock gnome environment in Gnome 2.
So again it doesn't make sense to me to confuse the issue by referring to gnome-panel as gnome2-panel and gnome3-panel when if you want to talk about differences it's more clear to say gnome-panel 2.x.x and gnome-panel 3.x.x the same way you would talk about any other app.
It's not like this is Fringe where Walter/Walternate and Olivia/Fauxlivia type namings have reference to alternates that are expected to have a continued ongoing existence independently of each other. :P
Later, Seeker