Chris Aruffo has done extensive research concerning the possibility to acquire absolute pitch (also known as perfect pitch).
His website contains pages upon pages of absolute pitch research, theories, and the phases of his journey for developing a method to acquire this skill.
Do you have what it takes to acquire perfect pitch?
There is so much interesting information pertaining to perfect pitch on this site.
If you want to know more about absolute pitch, check out his website first. Hours of research has already been done for you and the references are there for you to follow up on later.
For research concerning perfect pitch training: http://www.aruffo.com/eartraining/