Something that might be missing in some areas where ETN might become of good use is good internet access. Would it not be good if ETN could sponsor marketplaces and other locations with some kind of strong outdoor wifi access points? With all the “mesh technology” around nowadays Im pretty sure some large fields where food/vegetable markets happens in “third world countries” could get better access to wifi to make the ETN transactions easier.
If there is free and strong internet ETN usage would be easier. Relying on 3G or others might be risky.