It's a specific thing: PulsePoint has a couple of related apps. One will notify you (if you tell them you're CPR / AED certified) when there's a medical emergen

It's a specific thing: PulsePoint has a couple of related apps. One will notify you (if you tell them you're CPR / AED certified) when there's a medical emergency you can help with in a public place near you (assuming the local emergency services work with them), and it'll tell you if there's an AED nearby. The other app lets you update their database of AEDs with GPS coordinates, photos, landmarks, etc. The latter is how I pass a lot of time in airports :)