http://engineeringtv.com/blogs/etv/archive/2008/01/31/intellegent-wireless-power.aspxSeveral wireless power applications are already commercially available from Fulton Innovation, who has developed wireless power transfer that can determine the load of the device and maintain constant operating points through start-up and also the lifeenCommunityServer 2007.1 (Debug Build: 20917.1142)