It's been rumoured to have been in the works for a while now – as evidenced when it was discovered in the iPhone app code – but now it's good to go, you can look forward to an iPad-centric user experience. So expect tabbed navigation, full screen photo albums, notifications, chat, and pinch to zoom functionality.
Gaming on the go has also been introduced, alongside a drop-down messaging option for the full Facebook experience.
Why has it taken so long? Apparently, "it just wasn't ready yet". Best of all, you won't have to access it in that dratted browser. Want it? Download it now.
iPhone 4S – all the stories
Buttonless iPhone concept (by ConceptsiPhone)