1) A customizable installation (with checkboxes o something similar) you will be able to choose what packages do you want. You will can select or unselect the programs that ubuntu install as a default, if you dont need an email client you will can unselect it...
2) Integrate in 1 DVD unbuntu, kubuntu, xubuntu... you need only select what desktop do you want and what packages (see nÂș1)
"Ubuntu should be available as a live/install DVD that comes with Gnome, KDE, Xfce, and perhaps other desktop environments. Ideally, it would have equal priority to the CDs that only come with one, which would include being released at the same times. When booting from the disk, users should have an option of which environment to use. When installing, users should be able to chose which environments to install, and have options for installing additional packages designed for those environments (like the gnome and kde packages).
This would allow multiple people who prefer different environments to use the same installation disk. It would be more convenient for people who want to have e.g. both KDE and Gnome. It would make it easier for people new to Linux to learn which environment they prefer. It would make it easier for lesser used environments to gain new users. It would put all supported desktop environments on a more equal ground, rather than sanctioning one as the only "real" and "official" desktop environment for Ubuntu."
http://brainstorm.ubuntu.com/idea/7151/