Well well well what do we have here! Looks like Google are about to start selling the official Nexus 4 wireless charger on their own Play Store as the website has been updated recently and the charger now appears under Nexus 4 accessories.
However at the moment in the UK at least there is no price or availability, only that the item is not for sale at this time. We have seen tweets just now which state the item is available though in the States costing $59.99 so it should not be long until we see it available over here……. fingers crossed
If you want to check for yourself head over to the Play Store