Alltel customers brought under the Verizon umbrella have been getting more and more signals that it's time to let go of that legacy phone. The latest red flag is a letter that Droid-Life understands is making its way to holdout customers. According to one copy, Verizon will start shutting down the remnants of Alltel's data service on or near January 10th, 2013. Alltel's mobile data should be completely inert after April that year -- and those still clinging to the past will be down
