They did not add gnome-boxes, they did have a very old totem a old nautilus, never in the previes ubuntu-time they did not deliver the current nautilus, they did not add all the gnome-documents stuff...
the first gnome-shell they did not deliver at all, gnome-shell 3.0 was only availible as ppa or was even 3.2 only ppa?
they delivered incompatible.
btw, yes ubuntu did only add what was done till the point they release, but they syncronised basicly their ubuntu to the gnome-desktop, the gnome-dev desktop is the the gshell, now they dont wait till its done, so they basicly from totaly gnome-desktop centric distribution they switched to not even deliver gnome-shell 3.0 when it was done (only over a ppa or maybe universe) then int gnome3.2 time:
"11.10 Ubuntu immer noch epiphany 3.0 und totem 3.0"
there is also no official gnome-shell cd from ubuntu like I said there is one for lxde and stuff but none for gnome-shell.
you could do all the shit with js scripts...
http://packages.ubuntu.com/search?ke...ty§ion=all
natty gnome shell not in main not in universe
releasedate natty: April 28th 2011
releasedate gnome 3.0: 6 Apr 2011
releasedate gnome-shell 3.0.0.2: 6 Apr 2011