you're still confused... there is nothing loading deblet is going to give you that easy debian wont provide unless you plan to boot into debian. Debian is debian.

KDE4 is still a window manager just like KDE3 By different I meant it looks and feels completely different ... but it still isn't "ouside" of anything.

with easy debian you only have 2 environments.. Maemo, and Debian.

Everything is going to run inside either debian or maemo..

So you can run gnome and kde on the same debian at the same time. However you won't be able to run kde3 and kde4 at the same time on the same debian because they have packages that conflict with eachother because one is an upgrade to the other.

You can make ANY window manager show up and run just as flawlessly as what you are caling "Easy Debian"; which is actually just icewm... all you have to do is modify the scripts to launch the different window manager and it'll run it just as seamless as your current setup.

There is no reason to load Deblet unless you plan to boot to it.