Quote from: phillipsjk on June 21, 2011, 04:31:12 AM

I don't think that the CPRM built into SD Cards actually does that, though I have been putting off re-reading the publicly-available specs.

The Device lock-in seen on the Windows Smart phone may actually be part of the ATA spec instead.

From the kb page you linked:
"When the operating system integrates the SD card with your phone:
.. 3. It locks the card to the phone with an automatically generated key."

No mention of ATA there.

From Wikipedia on CPRM:
"(CPRM/CPPM) is a mechanism for controlling the copying, moving and deletion of digital media on a host device"
"A controversial proposal to add generic key exchange commands (that could be utilized by CPRM and other Content protection technologies) to ATA specifications for removable hard drives was abandoned after outcry in 2001."

The issue is from last year:
"If you pull the SD card out of a Windows Phone 7 mobile, the whole phone stops working. It's bricked. Except for making emergency calls, you might as well carry a rock -- an expensive one, at that. You have to put the original SD card back into the phone for it to work properly.

You can't take the data off using any SD card reader I've been able to find. You can't put the SD card in a different Windows Phone 7 mobile -- that nasty reformatting habit kicks in. It can't read it, can't download or sync the data, nothing."