7 Ways to Protect Yourself Using Only Your Cell Phone

Among my greatest passions in life are smartphones and personal security. I know right; I'm geeky and paranoid. I spent my spare time in the past two weeks considering ways that a person's cell phone can be utilized in personal security. I'm not referring to the stun gun cell phones or other fake phone weapons on the market. I'm talking about the thousands of Americans walking around with Blackberrys, iPhones, Google Phones, etc who need to eliminate risk of becoming a victim of a crime or...