Anil Polat, writer of foxnomad.com, has come up with an app that keeps passwords and hot spots at area airports updated. Through the help of readers, Polat is constantly updating and adding airports.
Clicking on the Nashville Airport reveals that the Delta Sky Club password is deltaone. You just have to get wihin range of the club. The site is updated every week .
The map is available online with more tips and tricks. The app is available on Android and Apple.