You will see a lot of reports on the web that Disney's Photopass added a paper sleeve to their cards that have a QR code on them. This code could be scanned on smartphones to see your photos. This started on the Orlando Sentinel's web site, but the author immediately pulled the report.
The reason is this: Disney's Photopass confirmed with me that it isn't true. It could be something in the future (this is my thought only), but isn't happening now. You CAN see your pictures by going to the mobile website (same address, it'll convert) on your smartphone. And of course, see them in a large view at any PhotoPass station.
Just a reminder: PhotoPass is broadcasting pictures each day on Cinderella's castle!