Samsung is going to use Qi wireless charging technology to charge mobile devices. According to digitmes, The galaxy S IV will use this kind of technology.
Sorry to break it to you digitimes but SamMobile already reported this couple of months ago. We are happy that we didn’t just post some fake information out there. The Galaxy S IV can be wireless chargeable by a special back cover and of course the charging dock. Samsung is expected to sell the dock directly after the first sales of the Galaxy S IV. Wireless charging is one of the big things for 2013, in our eyes. Many OEMs have started to use Qi wireless charging technology.

via source