New to CyanogenMod: Keep the Recents button to return to the previous application

A new feature will be available to users of CyanogenMod in upcoming versions, use the Recent button will acquire the function Alt + Tab that we used in our computer. 

Those who use it know how convenient it is with a move to switch between the last two but applications, mainly by the operation of copy & paste cake. So keeping the button pressed Recent, we can now return to the last open application we doing exactly the same thing and the CM. 

This is not something new to Android as users of Omni, Paranoid Android, Carbon and other known ROM already available to this function. But it is remarkable how the creators are motivated features without the "closed" with patents, giving free to anyone who wants to incorporate in his work.