I tested it in store today with flacplayer app on touch5G and iphone4 -both on the recent OS. I tried the sony pha2, fostex hpp1, clas solo-r with continental, X1, AK10. (I dont know which firmwares they are running, except the fostex was running an old firmware).I used 24/96 flac, and they all played back as 24/48. I took several screenshots but they all looked fairly much the same. 24/96 downgraded to 24/48.