it works on any os any idevice, this exploit is really not only limited to iphone it is more a qualcomm exploit it works on any qc device that has an esn/meid and/or imei
it is also kinda a catch 22 in that it does not need to be jailbroken to clear the meid, however once this exploit is applied you do need to be jailbroken to write it back to the device, i am positive at least for iphone i will get this working fully without a jailbreak there is only a few bugs to work out.