In Nigeria: Definitely in the next 20 years the power situation will have improved. I don't know of connectivity though. ICT will be very profitable by 2020 definitely though. The question is will we leave foreigners to take us to that place.
In Nigeria? IMHO, if the infrastructure (connectivity, power, etc) remains the way it is now (and what's to say, based on experience that it will change much?), we will probably remain where we are today.