Engadget
Walmart’s mobile payment service is beginning a massive rollout today, with Walmart Pay launching at around 600 stores across Texas and Arkansas. We first learned of Walmart’s impending mobile payment push last December, and the first rollout here is taking place five months later, with a full national release coming by the end of June. Previously Kansas, Missouri and Oklahoma got a chance to try out the payment method before it came to Texas and Arkansas as well.