Preview at WWDC likely in June, followed by September launch.
Facebook Releases Rewritten and Much Faster iPhone App
With the updated version, Facebook's engineers have dumped the HTML5-based app and rebuilt it using Objective-C programming to make it perform more like a native iOS app. From All Things D:
“People have different expectations when it comes to using Facebook for iOS,” Mick Johnson, Facebook iOS mobile product manager, told me in an interview this morning. “They expect a level of performance and speed that just wasn’t there.”Facebook for iPhone is available free via the App Store. [Direct Link]
Johnson says that the largest pain points — scrolling through the feed, photos and loading the app — will all be much faster, by a factor of three. Also, Facebook mobile developers working on the three separate iOS apps — Facebook, Camera and Messenger — all all now sharing a code base with each other, so Messenger and Camera are actually running inside of the proper Facebook app, bringing many of those features to Facebook for iOS. (As a bonus, a shared code base means faster development cycles, so we’ll probably see improvements sooner.)