It looks like Facebook has been pretty busy recently in working on its mobile app offerings on various platforms. First, we saw the iOS Facebook app
go native, leading to big performance improvements. Then Facebook introduced its new Photo Sync
option, and released a native-code version
of the Android app as well. Now, the Windows Phone Facebook app is also getting a speed boost.
Unfortunately, Facebook version 4.1 for Windows Phone doesn't get any other added features, but the speed boost is quite noticeable. The other downside to the update is that it is not available for older Windows Phone handsets, and does appear to require Windows Phone 8.