I too would love to see a plausible deniability like Truecrypt provided. Entering a passcode unlocks the phone, but only files stored under that passcode is vis

I too would love to see a plausible deniability like Truecrypt provided. Entering a passcode unlocks the phone, but only files stored under that passcode is visible. There is no way to tell how many hidden volumes there are. This does fall apart however. If I took an encrypted laptop or external drive somewhere and was required to unlock it, I would most likely be opening a filesystem that is out of date. During normal operation, you have to pay attention and ensure both volumes get files updated to make it appear current. For an external drive, you do this by mounting both volumes and storing your files accordingly. On a computer, you have to be concerned about traces left within the OS itself. So you have to be really careful about cleaning up after yourself. Or, you setup two copies of your OS and occasionally boot into your "clean" one and load files onto it. On a phone though.. the important stuff like call logs, sms messages, chat history.. that's what the authorities are after. If they know your phone is capable of "hidden volumes" and find that you have minimal/old history on your phones, they'll get suspicious. If messages or calls known to be sent to your phone don't appear, that is a pretty good indicator that you're not complying with the order. I think the only thing that could really work is a built in "kill switch". This would be a time sensitive in-memory program that requires a periodic check-in by you to keep it from nulling out all the application data and factory reseting the phone. Essentially, this has to work with no action on your part. If it can happen without you ever touching the phone once it's in custody, that's ideal.