Indulge me in a quick stat geek moment: thebasic standard deviation formula marks greatness across eras by showing the degree to which you stand out from the crowd in a given year (a team with fewer patsies to beat up on will score higher than a team than a team feasting on more patsies, records being equal).
For two years now, that basic, terrestrial formula was enough to make Angry Birds the de facto king of mobile gaming, and a stand-in for a casual gaming revolution that was gripping phone users and proving a full-fledged commercial phenomenon.