Let the hive mind of Engadget get that for you.
"As someone who doesn't reside in the USA, I was wondering what would be the best way to get internet for my computer in the US for a couple of weeks? If it were Europe I know I'd look for some prepaid data. Is there anything similar offered by American carriers? A MiFi or a data SIM that I can tether from would work, but I'm trying to maintain a tight budget. Help!"
developing countries have much much bigger issues at hand than computerisation. getting everyone yet another throwaway piece of toxic plastic will accomplish exactly what? make starving more fun? create new super cheap offshoring destinations? better give them lots of books, those last longer, will teach them actual useful stuff and possibly will keep them from getting fat, stupid, lazy and entertainment addicted like in the allmighty developed west. venezuela guaranteeing a free musical education for every child is a very good example for the rest of the world of how things should actually be done.