I just got an iphone and have been looking around for new apps when I saw this Mashable video (http://mashable.com/follow/videos/1...io-have-found-a-new-unique-use-for-the-iphon/). To my delight, the app is now on sale for $0.99 only so I grabbed it. The Cardiio app is seriously magical. It's my favorite app at the moment coz I'm really impressed it can see my heartbeat without touching me. I tested it against my BP monitor at home and it's very accurate - just need to hold the phone close enough to your face. Has anyone else tried it? iTunes link: http://itunes.apple.com/us/app/cardiio-touchless-camera-pulse/id542891434?ls=1&mt=8