7ef8676a_Photo_Editing_with_Aperture__Multi_Touch_trackpad_gestures
[Feature] Browser in grid view [Multi-Touch trackpad gestures] 
Use the pinch gesture to change the size of thumbnails in the Browser. Use the rotate gesture to rotate the image beneath the pointer. Use the swipe gesture to select a different image.
Photo Editing with Aperture
Multi-Touch trackpad gestures