There was a case in Australia that may be of interest to readers, as a defendant in a rape case was able to get the charges dismissed after his attorney retained a forensics expert who was able to recover messages the victim/accuser had sent to his iPhone, even though the messages had been deleted:
Apple has sold more than 50 million iPhones since 2007 but few users know how much information they collect. The keyboard logging cache means an expert can retrieve anything typed on it for up to 12 months. Its internal mapping and ”geotags” attached to photos indicate where a user has been.
An iPhone has up to 32 gigabytes of data that can be ”imaged” or decoded with the right equipment, Mr Coulthart said, even if it has been deleted.
Read more of the story by Joel Gibson in the Sydney Morning Herald.