In Engadget Investigates, we explore major issues, working with tech manufacturers and service providers to improve your experience with the gadgets we've all come to depend on. If you'd like us to look into an issue, please send us a tip, including "Investigate" in the subject line.
Samsung's highly-anticipated Nexus S 4G joined the WiMAX family this month, pairing Google's popular Nexus handset with Sprint's 4G network. But with the honeymoon over, customers have noticed that the Gingerbread device isn't
