Facebook Timeline feature that have been available in the Android app and Mobile web, is now available for iOS devices. Facebook update 4.1 ads the Timeline feature to the Facebook app for iPhone and iPod touch, it will be available for the iPad.

Facebook also mentioned this update adds:

– Access to Mobile Timeline on iPhone (if you already have a timeline). iPad support coming soon.
– Access to friend lists, subscribers and subscriptions
– Faster, better performance

(Facebook)