I have KP installed for the last few years, I think you need to have Pali's new BME alternative and some edited files to bypass the shorted data pins, though I understand that is not without issues.

I get charging at about the same rate with a 2000mA(2amp) mains to USB charger and Qi pad as I do with my Nokia 1200mA(1.2amp) mains phone charger. Have not wired the phone adapter with an ammeter.