Despite the failure of this USAfrica enterprise (kind of a cool name though), I think that direct, low-cost service from the US (NYC only maybe IAD) to points in Africa could work. I don't know much about the market and I'm sure the yeilds will be low, but I think it's surely viable. To work, fares would have to be very low, and costs held in check. Efficiency would be the name of the game here. Also, an airline like this could probably ring out support from US gov't, UN, and African govt's. I'd be willing to get involved with it, if it was a well-run operation.