Its anyones guess who will win the war to wirelessly charge your gadgets, but one of the three competing standards bodies is just about ready to do battle. Today, the Alliance for Wireless Power (A4WP) has announced that it will launch a certification program for devices at the end of this year, under the brand name Rezence. The resonant in the name stands for resonant wireless charging, a different technology than is currently used by competing standards Qi (by the Wireless Power Consortium) and Power 2.0 (by the Power Matters Alliance). While all three standards bodies are currently pursuing resonant charging, the A4WP believes it can get to market sooner with Rezence.