All week Minnesota Public Radio has been looking at the promise of new wireless technologies. New uses for web-ready cell phones and palm-top computers on the job, at school, and in rural communities offer greater mobility than ever before . But some of the same features touted by proponents are precisely those raising hackles among critics. Take the ability of mobile phones and other wireless gadgets to pinpoint and broadcast a user's location to within a few feet. That means it'll be easier to find people when they become ill, or get lost in a blizzard. But do people really want marketers and government officials to know where they are at all times? Minnesota Public Radio's Jon Gordon has the final installment of our series, Minnesota Unplugged.