Command- m trick in 10.7.4?

I read that if you hit command-m in launchpad, you get some kind of cool effect. Doesn't work for me running 10.7.4. How do I do it?

Ps- despite what others have told me, I went ahead and downloaded Lion with my 2gb of ram on my MacBook. It actually runs very well! I'm pretty happy. I get about 1.2gb of memory to fill up when booting to an empty desktop.

Just wanted to say that^

What was it, anyway? I guess it could't have been that important... no more than that shift+ click minimize button that slows down animations...