Providing USB Ports on the CPU Card
This isn't strictly a suggestion for an application of a generic CPU card, but instead an observation (based on the interview with Liliputing) where a CPU card might itself provide USB ports. Thus, a card could be plugged into an EOMA-capable device and other peripherals attached via the USB ports provided by the card.
This might look something like the following product...
This is an Adaptec USB2connect for notebooks card that provides USB 2.0 ports using a normal CardBus card. Here, only the physical profile is of relevance.
Note: this idea is very similar to the Pass-through card concept