Provide an interface tailored to display on a so-called “digital photo frame.” A web browser preconfigured with credentials for access to a specific subset of images could then provide a rotating view of images of the PS administrator’s choosing, without need for the operator of the remote device to deal with any of the administrative goop, and without anyone needing to rely on the intent and technical prowess of the team behind some no-name picture frame device for the security of one’s private images. Bonus points for some minimal touch-screen-friendly UI (forward, back, pause, show-newest, pin, etc.).
A tablet in kiosk mode of some sort, displaying a curated set of images, would be a joy to remote friends or relatives. Purpose-built devices to accomplish similar today seemingly all require either trust in entities that many of us would prefer not to trust or acceptance of other significant security risks.