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This board is based on the AT91SAM9260, an almost identical processor to the 9261 in the same family, with an Ethernet interface, but no built-in LCD Controller. It would be useful if we ever wanted to connnect to an Ethernet Router or WiFi/Ethernet Router.
The board is on special offer at about $200. That would still be expernsive for people in Africa, but the idea is just to see what a professionally-made board would be like, if we produced something very similar ourselves. It would help us to see how complex the PCB is, how many support chips and resistor/capacitors/connectors are needed.
It's an odd shape if you look at the photo in the pdf, as it's designed to plug into a USB Port during development.
As I said, there's no LCD Controller, but we could test it with an external USB VGA adaptor and LCD Monitor. We would need to make sure there is a Linux driver, with C source-code so we can compile it for the AT91SAM9260.
We may find some other display option. It has a 50 pin expansion connector, which I think brings out an SPI interface, allowing us to control an intelligent SPI-interface LCD Module, if we want.
If you aren't familiar with SPI (I wasn't), then here's a Wikipedia article. It's a 4 wire master/slave thing, mostly for linking chips and modules within a piece of equipment...
The chances are, there are some similar boards around if we look hard enough, perhaps cheaper and for the 9261 with LCD Controller.