- The patent's called "wearable computer having a skin-stimulating interface." Shocking a user wouldn't make much sense for a smartphone, but it could be an interesting idea for a smartwatch.
- Current smartwatches vibrate or make noises to alert the user. But a subtle shock might be the most discrete way to serve a notification. Would shocking work for wearables like Google Glass?
- Mike Brown over at the IB Times has a good writeup of the challenges this idea needs to solve before it becomes a commercial idea.
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