What are the practical uses for Enlightenment. It looks interesting, but what do I do with it?

On another note, how do I make my window borders in GNOME transparient?

Enlightenment appears to be a bare bones GUI with almost no additional tools present so that it loads quickly, unlike KDE which takes some time. You should be able to most of the same things in Enlightenment that you can do in KDE. In Enlightenment, holding down the CTRL key while clicking the left mouse button will perform the same function as clicking the "K" at the bottom left corner in KDE (i.e. both will pull up the start menu and allow to run programs).

Practical uses? Well, it's a window manager, like any other. It gives you borders on your windows so that you can move and close them

On a less I'm-being-a-smartass-note, it's really pretty, if you get a good theme for it (I'm enjoying arietta). It's incredibly customizable, and you can do many nifty things with it. My main problem is most people's ideas of themes are a) bright white and b) square, or else are c) ports of other wm's themes, which to my mind sort of violates the whole idea of themeable...be inventive, for pity's sake.

It's customizability makes it fairly easy to modify, if you want to take the time to learn its ins and outs. Sadly there's no nice little tool which says "make my menu backgrounds X color, and my titlebar should be THIS image in THAT location on a window", so it involves a lot of "grab a theme, install it, and start mucking with files".

So yeah, it's pretty, it does what it's supposed to, it's customizable....it's neat to try, and I'd highly recommend it if you've a package-managed system which will take care of the quasi-complicated and depdancy-ridden install for you.

HTH!