It's cool because it's getting rid of years of the seriously antiquated table layout. (CSS will be doing the same thing.)
The funniest comment had to be from loconet:
"Add to that the fact that Slashdot is moving to css, Apple using Intel, Apple Shipping 2 Button Mice, Debian 3.1 was released and this year seems to be turning into be the pivotal point for hell to hold the winter olympics."
I redid my personal website with CSS also.