The smartphone is quickly becoming the 21st century Swiss army knife. Beyond being able to make calls, send messages, play games, and surf the web with it, both Google and Apple have enabled devices to replace the wallet, by storing credit and store cards, coupons, rewards cards, tickets, and boarding[...]

Smartphones are great. They do a bunch of stuff like browsing the web, managing bank accounts and throwing angry birds at things. They can also do another thing that is not so cool: Constantly monitor your movements at any given time. Sure, location services can still be turned off on[...]