Kirk H&J offers an entire range of Inpofi devices and models that enable wireless charging using a proprietary transfer system called “Electric Transfer” to charge devices by placing them on the charging surface.
For the Samsung S3 – you remove the back to install the system. For the iPhone there are a variety of cases , currently for the iPhone 4 – with the iPhone 5 due in the first quarter of 2013. Charging times are similar to wired systems, and offer over 90% efficiency. You can mix and match iPhone and Galaxy devices.
The units are available presently at OhmTopia.com , and should soon be found in regular big box stores.
Estimated price points are $50-$70.