http://newatlas.com/pi-wireless-charger/51402/ >With the news that Apple's latest iPhones are going to support wireless charging, the tech is back in the spotlight, but it still has its limitations. You still need to find a powered mat or disc to put your phone down on, it's not easy to charge several devices at once and it's not easy to use them while they're being charged. Pi promises mat-free top ups within range of the cone-shaped wireless charging station, and support for juicing up multiple devices at once.