By Anton D. Nagy | April 5, 2011 2:23 AM
The new version allows you to Unfriend anyone in your Friends list on Facebook straight from your iPhone. Additionally, a Map View for Places has been added as well as the ability to Check in to Events that you’re attending. There are also improvements to the News Feed as well as some notification UI enhancements.
If you didn’t get the notification overlay for an update on your App Store icon and neither in your computer’s iTunes app, follow the source link below to download the and install the update.