Solar powered cellphone battery charger, exhibited in Taipei.
Olympus Medical Systems, capsule sized camera.
I can’t get the original source of news but here’s the sumary:
Prototype, 0.5mm diameter, powered wirelessly, guided system can release medication on a specific location, as well as collect fluid sample in the digestive system, or carry out sona scan. This sounds more like a sci-fi Bond gizmo to me, too good to be true. Next you see somebody using it as a micro internal demolition device.