While the new "Places" GPS check-in feature got most of the attention in Facebook for iPhone's latest update, a more subtle feature made its way into the app's interface: pull to refresh. Users of the official Twitter for iPhone app, previously known as Tweetie, will recognize this UI feature right away, because Tweetie creator Loren Brichter pioneered it and even filed a patent application for it.
If you haven't had the chance to "pull to refresh," it takes advantage of the iPhone's "spring-loaded" page dragging behavior by refreshing content when you navigate to the to
