The cost of classes would be covered by the performance of the student (if poor financial conditions). The acquiring of the actual devices might be done from donations and actual purchases, but the student would not be charged the full price if conditions do not allow.
I am optimistic in seeing a portable Wi-Fi ( I once saw a car company commercial which had Wi-Fi included) that can be taken home together with the device. I chose Face Time as an example, but I'm seeking an app similar to it that can be used from every device. For coverage, I can interpret it in many ways depending on the financial status of the person. For example, if the student did really good in finishing the class, however has poor financial needs, the course will cover it. Coverage can be based on the talent and commitment of the individual.