Days with Ubuntu 7.10 are turning into very productive ones. I've spent hours with system, mainly working with my current projects and I must say that Ubuntu differs from various other systems (including kubuntu) by being most of the time away from productive work flow. I read that somewhere in web, where it was mentioned when ubuntu and vista was compared.
Here is eye candy screenshot of my current screen
And another one which shows you compiz-fusion expose plugin result: