Get an accurate heart-rate reading by putting the tip of your index finger on the smartphone's camera. If you don't have a phone with a flash, you need to be somewhere well lit for it to work. "I have to admit that I'm the non-runner in the family, but I'm hearing lots of good things about this app. The perfect plan to get someone who is exercise-averse off their butt, out of the house and onto the mean streets. The settings, social-networking links and the integration with your music collection are all designed to swing even the most recalcitrant jogger into action." SH "This app is the perfect blend of analogue meets digital. You can take a photo from your smartphone, then send a physical postcard of that photo straight to your grandma in England." AF An iPhone app that lets you make free phone calls to other iPhone users who Read More