So I bought this fancy electric toothbrush thing on the advice of my dentist. Sure, it cleans my teeth really well and costs a pretty penny, but what blows me away is the contactless recharger.

The recharging station has a little plastic post on it, and to recharge the toothbrush you just set it down on the post. Neither the post nor the hole in the base of the toothbrush have any conducting contacts. Apparently the system uses induction to deliver energy to the toothbrush to recharge the batteries.

Imagine how useful this technology could be for general power delivery to small devices. Say there was a surface on your desk with a small outline indicating that it was capable of inductive power delivery. Any suitable device could simply be placed on the desk and would come alive. No need for batteries, and because there are no exposed power contacts, the casing on the devices could be much better sealed. Possibly good for kitchen devices or industrial stuff where harsh environments are a problem?

Anyway, just a babble.