In a stroke of, errr - cough - genius, Ericsson AB has a new modem that can "send a signal that completely disables the computer, making it impossible to turn on."
The premise here is that if a company sells someone a laptop and that person fails to make payments then the company could completely disable the laptop - thereby turning it into an extremely ugly paperweight destined to clog a landfill near you.
The problems here are numerous. Operational mistakes will be made that affect innocent users. Intruders will interfere by attacking through holes in the technology. And so on.
You can read more about this upcoming fiasco over at MSNBC