You don't need a chest strap or a specialized wrist watch to monitor your vital signs. Philips' Vital Signs Camera uses the iPad 2's camera to measure your breathing and heart rates. Amazingly, this 99-cent app checks your heart rate by analyzing the color of your face, and your breathing rate from the motion of your chest. No additional hardware is needed, nor do you need to touch or hold the iPad. Oh, and it lets you share your vital stats via Facebook, Twitter, and email. Hopefully, your family doctor reads your tweets.