Looking for sustainable software for education in developing countries

It is a priority to use new technologies in education at developing countries. There are plenty of software that is used at schools and higher education. Universities and non governmental organizations (NGOs) that work with partners from developing countries usually trust in the advantages of software applications for e-learning, b-learning or software applications for practical laboratories or administrative issues. It is curious that sometimes many institutions in our own (developed) countries take plenty of wrong decisions related the software that is used in education. But in this paper we are not going to talk about the software that should be used in education in general because it depends on the situation and context of each particular educational institution but we are going to discuss about a set of popular mistakes that are made again and again by institutions (universities from developed countries, NGOs, foundations, volunteer collaborators, etc.) when software applications are developed of just installed in educational education projects.