I wonder why Samsung couldn't make a special button on the side of the phone that when pressed would automatically take a screenshot, this would take away the hassle and somewhat difficult manoeuvre of holding the home key, then hitting the back button while then pressing the power button all just to take a screenshot!
Not sure if this idea is already on newer smartphones or not, maybe it's on new iphones, maybe someone could confirm.
EDIT.
On JB all that's required is the power and home button pressed for 2 secs, no need now for back button to be hit for the release of task manager.