In this paper, we will describe the weaknesses inherent in, and some non-viable factors of mobile phone learning (PDA and other mobile devices are not included). Our conclusion is that while e-learning has only just been accepted by educators and is increasingly being put into extensive and effective use for learning, m-learning, especially its main delivery system, mobile phone learning, will have a long way to go to before it can or will be effectively, extensively used or accepted for learning purposes, by either educators or the general public, unless the problems raised in this article are solved.