Apparently Ubuntu will be going for a game-change with a new Desktop environment named Unity.

You can install it on Ubuntu 10.10 using the linked instructions

There is a 2D and 3D version. I'm running the 2D version because the 3D version will probably slow my computer down because it's older than dirt.

Time will tell what the fallout from it's introduction will be. With Ubuntu there is always a few open source projects that get dropped and new ones included as they vie for the sweet spot that will deliver an integrated easy to use product.