Could be useful as an anti-crime/anti-abduction tool,
especially for children.
The device could be strapped on to the shirt/blouse of a child, and whether on the way to school or back from school, the camera records the kid's every move and his/her surrounding. It could also be used when kids are in playgrounds and in stores and in theme parks and other crowded places. The device could be uploading instantaneously to the cloud, instead of waiting for the end of the day when a parent/guardian/supervisor might issue the command to download the camera's contents. If the contents are being sent to the cloud, then, if a child is abducted, chances are that, the camera will have caught a glimpse of the abductor and location and vehicle (if any), and the camera itself won't be needed to get the images. Also, if the child is abducted, and the abductor fails to take the device off the child, it could serve to capture further evidence, like the route that the child was taken on.
However, the device has to be made flat and wearable and less intrusive/obstructive on the child's body.