The new app, which Facebook said it has "rebuilt from the ground up," will open quickly and allow users to scroll through stories smoothly and load photos instantly.
(http://asset3.cbsistatic.com/cnwk.1d/i/tim/2012/08/23/DisplayMedia.png)
image: facebook
This should mean a better user experience for those who want to use their iPhones and iPads to browse Facebook.
If the update means a better user experience, that could also mean more eyes on the product and a more attractive platform for advertisers.
ref:cnet