Those two SDIO items were designed to be used on Windows Mobile devices, primarily.
The main reason they exist is that Windows Mobile handhelds can't host USB devices, they don't have the ports.
Luckily, we have USB on the Pandora, and there is already a plethora of USB and bluetooth devices out there.
While SDIO stuff may be able to be made to work with the Pandora, USB and bluetooth devices will probably be a better bet.