No, wider space.
Widescreen LCD = they can sell you a 19" panel and call it a 22"
Once you go widescreen you can't go back....
4:3 monitors are looking more and more square.
But yeah, you dont get more desktop space, it just seems like there's more.
Edit: and I'm going to disagree with games, as a lot of games don't support wide screen, or you have to edit config files to get there. Combined with the fact that when playing a FPS on a widescreen its like you're wearing a sombrero and a face mask. Sure, it's wider, but you can't see up and down very well. I guess if you're playing Halo then it would be okay.
(That's my little joke about console FPS's having flat maps because the controllers are such a handicap.