Walmart's already firmly entrenched in the prepaid cellular business, offering handsets and service via Common Cents (Sprint) and Straight Talk (Verizon Wireless), but according to Greg Hall, vice president of merchandising at Walmart US, there's a "perception among customers that prepaid service doesn't offer access to the best phones or the best network quality." In order to combat that, the outfit will be launching a new postpaid service today dubbed Walmart Family Mobile. The actual fine print is somewhat confusing, as it offers the best o
