Hi darcyja, how are you?
We have not tried to develop our own drivers for these microSD, and the information of how they work is kept by BenQ.
BenQ is working on the T60, but this is a non-windows phone.
In our research of the BenQ, the port to access to the NFC chip is already locked by the JavaVM, and it is the only way to access to the secure element. This NFC chip has a driver which interface is provided by NXP.
I hope this information could clarify your questions.
Best regards,
Jose