Robots on the Farm and Implantable Tech

This time, Cathi Bond talks about the Agrirover, a robot designed to run 24/7 on livestock paddocks, combing the field looking for spots where grazing grass is damaged by, erm, pee (via Scoop). A chat about robots down on the farm ensues. Meanwhile, Nora Young mentions that Motorola has a patent on an "electronic skin tattoo" (temporary!) to transmit voice and also to serve as a power supply (via PCPro, and others). The premise is that it would be a microphone and a power source. For me (Nora) it's interesting mostly as yet another example of how normal implantables and wearables are going to be in the next 5 years or so. In the near term, though, would you use something like this?