Slow afternoon at work so playing around with wireframes for an iPhone Twitter client.
With the iPhone 5 that extra bit taller I've been experimenting with a navigation bar but fixed to the bottom to keep those buttons in easy reach! Also allows for some interesting interactions with the navigation sliding up from the bottom (e.g. a custom implementation of UIActionSheet).
Big view here: http://goo.gl/O3BTd
keyboard shortcuts: ← previous shot → next shot L or F like Z toggle zoom