The latest iteration of Friendly, upon login, features three main tabs, including the Live Feed, Events and Places. Places supplants the original third tab, which was Requests. (See: Friendly: The Best Facebook Experience for iPad)
The Newest Friendly Build Features Places
Adding a New Place via Friendly
As you would expect, the Places tab offers for you to "See where your friends are and share where you are." To check in to the place, just click the location pushpin, commonly associated with Google Maps, and select an existing location, or create a new one yourself.
Posting the Check-in to Facebook via Friendly
The Resulting Check-in and Tag on Facebook Places
Upon adding a place, you can add a description, and tag other Facebook friends who may be at the same location - just like the Web site.
The implementation of Places within Friendly is very straight forward, and looks like pulls data from the mobile-optimized version of Facebook, at touch.facebook.com, which no doubt speeded the coding. You can grab the Friendly app from iTunes for $4.99.