This would be useful if you had information that would put you in jail for the rest of your life, and certainly should be something offered for users who need it. However, being put in contempt of the court is not joke, and I can't imagine this would go over well if you tried it when compelled to unlock the phone.
Hidden containers similar to what TrueCrypt could do might take you farther in this regard. Self-destructing a hidden container should ideally not expose what you wish to protect and at least provide plausible deniability.
Hidden containers similar to what TrueCrypt could do might take you farther in this regard. Self-destructing a hidden container should ideally not expose what you wish to protect and at least provide plausible deniability.