i have a feeling that the 10W charger will disappear and they will just sell the 12W one. the costs of having to carry 2 models exceeds the cost of upgrading the transformer to 12W while keeping the price at $19
Sweet! Thanks for the info.
"Your iPad with Retina display includes a 12W USB Power Adapter for charging directly through an electrical outlet. Purchase this additional adapter to have a second charger for home or office."