If you've used Mobile GMaps on your J2ME-capable handset, you probably love the GPS integration this third-party program has with Google Maps. With gpsOne being built into most Sprint handsets these days, customers of that carrier get a cool mapping and navigation service -- of sorts -- for free. But Sprint doesn't like this and is threatening legal action against the maker of Mobile GMaps unless the company removes or obfuscates the GPS tracking functionality. Is this another example of not letting the customer do what they want with the handset that was purchased along with the data package being paid for? We hope not, but this reported action (for possible revenue protection?) smacks of having no legal basis.