iPhone 101:

Using Ping on your iPhone

Along with the desktop version of Ping, you can also utilize Apple's new social network on your iPhone. It's actually proven to be my favorite method of using the service.

However, Apple does make it a bit difficult. At this time, you can't activate a Ping account from your phone -- it must be done through iTunes 10. Otherwise, you'll get the lovely message as seen in our screenshot gallery. Once you get Ping activated, it integrates nicely with the existing mobile iTunes. ...