This question must be looked upon as an overall one. Not a concrete one. It is more about if you know about the economics of these small netbooks.
https://edition.cnn.com/2010/WORLD/asiapcf/07/23/india.thirty.five.dollar.la... I do not know if this computer got on the market. It cannot be done for 35usd without subsidies?
Let us say we have a series of pc cards. Having different performances. Various prices. According to lkcl the cheapest would be about 30usd.
On https://www.alibaba.com/product-detail/Cheap-Via-8880-7-inch-Android_6047897... there is a 7 inch netbook for sale. It appears to be a common computer. Prices are about 50usd.
I would want to compare the computer to the one laptop per child. What magnitude of order would you have to place at the manufacturer, getting him to redesign the cabinet of the https://www.alibaba.com/product-detail/Cheap-Via-8880-7-inch-Android_6047897... netbook to become a pc card housing? What would he be able to sell the pc card housing netbook for?