Apple still hasn't built wireless charging into any of its devices, but third-party accessories that add the feature are finally beginning to fall to more realistic prices. Duracell is one of the companies that is continuing to pursue the technology with its PowerMat system, currently including the PowerMat for Two Devices ($50). Also available for one or three devices at $40 or $70, respectively, the PowerMat hub is a slim piece of aluminum and plastic…
