A number of readers have e-mailed me about Sprint Nextel canceling troops’ cell phone accounts because of “excessive roaming.” A commenter at the Sprint Users forum first blew the whistle: I have been a Sprint customer for over 5 years now. Just shortly after my unit returned from Iraq, we rec[ei]ved notification that we would be redeployed to West Point to train cadets over the summer. With almost 1/3 of the unit being Sprint customers, almost 200 soldiers, one of the first things we did was get online and consult Sprints coverage map to ensure that we would have service...