Talk:Keys/@comment-180.191.113.243-20130416025548/@comment-5709722-20130426102644

In case you have a rooted device and a custom CM ROM, you can change your settings so you can kill any active app with the back button:

http://forum.cyanogenmod.org/topic/35421-long-press-back-kill-app/

other custom ROMs might also have this feature, for CM i know it works