It's not that we expected the Motorola Xoom to forever be tethered to a carrier, but it sounds like we won't be waiting nearly as long as we did for Samsung's WiFi-only Galaxy Tab. Latin America GM Maurizio Angelone has told Infobae that a WiFi-only version does indeed exist and will first arrive in April -- one month before the 3G version will hit the market. The article doesn't specify if those months are specifically for Argentina or if they apply elsewhere as well, but it does sound like it'll be available sooner rather than later.