iPad Keyboard - There are phantom keys in the middle when you split the keyboard in half.
/via Reinier Ladan
Facebook iPad app - When tapping a tab that is already open, the content wiggles when the sidebar disappears.
/via Thomas Bogner
Apple - Shows black and white buttons appropriately to help you select the color for your iPad 2.
/via Daniel Burka
Twitter for iPad - Swiping your timeline to the right, removes the content layer. It’s visualized by a little animation behind the timeline.
Reeder app - website makes use of some nice CSS3 transitions.