Didi is the name given to the Matting style of Cornrows. Its very traditional to Nigerians, especially the Yoruba tribe in southwestern Nigeria. As a matter of fact this is the first time I'm hearing that the IBO's in the Eastern part of Nigeria have their own Didi.
So what's the difference between the two? I hear that the Yoruba Didi is flatter on the head than the IBO.