Custom Tones on iTunes
http://cdn2.hubspot.net/
Yet another iPhone feature that is not known by all. You can create custom ringtones and other alerts for your phone. Using tracks from your iTunes library you can use your favorite songs. You must take the track you want and create a version of it that is less than 30 seconds long. Then it should be save as an .m4r and imported back into iTunes as a ringtone. Then it can be synced as a ringtone.
