Comment What about old Iopeners? (Score 2, Informative) 60
Netpliance used to have a product called iopener, which was essentially a small PC with an LCD display and a flash disk. CPU is usually an IDT Pentium clone at around 180-200MHz. It comes with USB ports and uses an external DC power supply. It sounds like it could fit the bill fairly well.
If you're lucky you might be able to find enough of these used to build your project around them, at least if it's a limited batch of 20-30 units. They usually sell in the $50-$80 range on eBay and surplus stores.
If you're lucky you might be able to find enough of these used to build your project around them, at least if it's a limited batch of 20-30 units. They usually sell in the $50-$80 range on eBay and surplus stores.