Africa is a continent that seems to be skipping the desktop computing phase and transitioning directly to smartphones. Even in communities without access to smarter phones, information gateways can deliver vital services to 'dumb' feature-phones.
How does this type of information access affect farmers? It turns their phone into one of the most important farming tools they have, with which they can access important market information, see weather forecasts, receive crop- and location- specific farming tips (e.g. 'fertilize now' or 'don't water, rain expected this week'), and have access to banking services and credit.
The Gates foundation has an excellent video explaining how this future pans out. Take a look!