There are some nice effects to be played with WRT to compiz. Try changing the spring tension and friction settings of the ‘wobbly’ plugin in compiz via gconf-edit. Friction can go down to .1, in which case try getting hold of the window again. CTRL-ALT move window is sweet – push one window against the other (or the top or bottom of the screen) and you get a nice sticking effect. I can see how this will be modified in the future to group windows together until you want to break the bond: logical groups achieved by ‘sticking’ windows to each other. And of course zoom with alt-scroll is cool for someone who’s as shortsighted as me!
It’s eye candy all right, but it gives Linux new possibilities, and that must be a good thing.