Superstar
If you need any more of an indication that the times are changing, I present to you the iStethoscope app. This app is actually a working stethoscope, using the iPhone's motion and sound sensors as well as its camera to take accurate readings of heartbeats.

What makes the iStethoscope app so great is that it's free to download. Check out the gallery above to see pictures of the iStethoscope app in action, and click on the links to your left to download yours today.