Ubuntu 12.10 will have Gnome 3.6 and clutter dependencies will be now installed by default. Getting clutter in Ubuntu will make it possible to have new Gnome 3 apps like Contacts in 12.10.
Gnome-control-center will be forked as Ubuntu Control Center with a stack of patches maintained by the system team.
Light themes will be improved to have better integration with Gnome 3 applications, specially the CSS part.
These decisions can be changed or revisited later in the cycle. Full session notes can be found here.