I found this screenshot in one of the market apps (Galaxy Nexus Flashlight), in the red rectangle there is an app do you know this app? it seem very interesting.
Thanks a lot everyone, I found it, it's a custom ROM called AOKP http://www.forum.aokp.co
If you're thinking about installing it, I'd recommend you to use Widgetsoid. It can sit on homescreen and as notification (like in image). And, it provides a lot of toggles which -- I bet -- no other app provides.
the correct answer: this is an app called TogglePanel that appears in the notification pull down. It costs $1.
This is the built-in
Power Widget of the Android 4.0 (Ice Cream Sandwich).
In other ROMs it's called something like
Power Control or
But as an APP there is a very good Application called Power Control which has a free and paid version.