Samsung announced back in May 2012 that a wireless charging technology. Now it’s going to real. Samsung made this possible before Google trying to make. Google failed in their experiments and Samsung succeeded by the wireless charging plate for the Galaxy S3. The wireless charging plate is designed to work with the Samsung Galaxy S3 (with a special backplate in place) and is compatible with the Qi wireless charging standard. It’s worth noting that rumors indicate the Galaxy S4 will also be compatible with the Qi standard, meaning there’s a good chance customers will be able to use the plate to charge both the Galaxy S3 and its successor.

FCC published photo of the device. From a technical perspective, the charger is a simple device, featuring inside a copper coil, a control board, and a LED indicator. That's pretty thick. Rather than using discrete components, this is something which should be molded into the rear cover. It need not be thicker than the original GS3 back cover considering the system consists of a winding of copper and a shunt inside the device.

Actually it would not remove any wires involved, as the charger would still need the same cable running to it. It would remove the need to physically plug in the phone to the wire. Something a dock has done since the S3's release.