Yahoo has created a tool that makes it so that you can download the emails of your facebook friends.  After doing this you can import those addresses into your address book, so that you can localize your contacts.

By: Garin Kilpatrick

The Facebook App is listed in the Apple App directory as one of the most popular apps of all time. 

The first time I used this app I found that it was very easy to navigate and well designed.

All of the different parts of facebook are accessible via large icons.

The only problem with this app is that sometimes it is very slow.  If you are searching for a friend it might take a while if you have over a thousand friends.

I have the latest version of the iPhone, the 3Gs, and although the S in 3GS is supposed to stand for speed I found this app to be very slow compared to accessing facebook on a computer.

A better way to access facebook on the iPhone is by using the Safari Web Browser built into the iPhone. Simply surf to: http://iphone.facebook.com/ and enjoy facebook on your iPhone.

The web version of Facebook is optimized for the iPhone and works great.  The Auto-complete feature even works as I type a friends name in the search box.

I keep the facebook app installed if I ever want to do a quick status update.

The facebook application is currently shooting up the ranks as one of the most popular applications to date and there are already more than 15,253,000+ iPhone users who have installed the app.

Although the Facebook app for iPhone is slow a nice feature of it is how it is completely ad free.