Scientists who study the brain have known for ages that the left brain controls creativity and the right brain controls our logic. Left Brain, Right Brain aims to improve both, and at the same time, make ourselves ambidextrous.
With the success of games like Brain Age and Big Brain Academy, it seems that developers everywhere are cashing in on the "Brain" catchword, much like the 'i' in front of every word in the late 90's. They believe that any game with the word "Brain" in it will do well. Left Brain, Right Brain has two "Brains" in it. So is it twice as good and twice as fun?