Microsoft’s MSDN portal provides further insight into the use of the SD card. For the CPRM system it is called SD Binding according to the SD Association. There is more and more information coming forth regarding this. Here is a great article which describes the current state of play from endgadget This is by design, after all SD does stand for Secure Digital. By now its pretty clear that the use of a miroSD card in a WP7 phone results in it being securely locked by the WP7 OS.
