"It's neat, and I appreciate the benefit, but this is really, really unsafe.- Now even easier for kids to stick things into your outlets and shock themselves - instead of having to fit into a deep, narrow plug, just has to go into the shallow and wide one here!- Spills and condensation are also even more problematic than ever before, since they can easily bridge hot and neutral.- That radial contact that he's got is going to be really unreliable (since tolerances are never perfect), and I could see it easily generating lot of arcing/heat (causing fire/waste) or electrical noise (damaging connected devices). Note that it isn't used in the proof of concept.MagSafe gets around this by being DC, using front-facing contacts, and by using some fairly smart electronics to only turn on the juice when there's a solid connection. The last of these kind of relies on knowing what it's connected to, so that's a non-trivial problem here.Also, nitpick: AC doesn't have high/low/ground. It has hot/neutral/ground."