The new Energizer InductiveCharger lets you charge your iPhone or Blackberry without any wires tethered to your device. You’ll still need a special pad and case, but it essentially means that any future products released by any brand sporting the Wireless Power Consortium logo, Qi, will be backwards compatible. So if you buy Energizer’s Inductive Charger system (mat and case) for the iPhone, and switch to a Blackberry down the road, you’ll only need to purchase a compatible battery.
On the other hand you could use any charger that sports a Qi logo, regardless of the manufacturer.
The Energizer Inductive Charger allows you to charge up to 3 devices simultaneously. Unlike Powermat’s charging solution, the Energizer Inductive Charger doesn’t need a sweet spot to make sure your devices are charging. You merely place a device any where on the mat in whatever orientation and they’ll charge, provided of course that they’re equal or less than 5v.
The Inductive Charger will be available this October for about $90 and the cases/batteries will run $35 a piece.