Edit: I'll address the comments/thoughts here in a follow up blog post. Glad to see so many people thinking about this space. It's a great thing for the world to have entrepreneurs building here.
Given those 5 years have now passed, what's your assessement of the situation now?
One thing not mentioned which I think is important is the ease of paying (whether the edtech is app or web-based). It’s all very well to target those in poorer countries, but many of them (consumers) still don’t have online banking, and payment gateways are often local and clunky (I did notice in my last trip to Asia that this is improving.) I’d love to hear your thoughts on this :)