I just upgraded from 10.04 to 12.04 and am now struggling a bit with the new app switcher. The main problem is the delay in popping up, but I'm also not sure that the new behavior of folding multiple windows into one icon will work for me.

I've seen this post of using compiz (CCSM) to change the app switcher, but it appears that it no longer works in 12.04.

Is it still possible? Is there a better solution?