An Apple patent filed back in 2009 shows the Aperture app running on a larger touchscreen -- something akin to the iPad, though of course back then it didn't officially exist yet. The image is actually part of a larger patent that goes through the whole process of how user interface elements work on touchscreen displays, but as you can see above, Aperture is clearly the app being shown.
Apple hasn't released that app for iPad yet, though it has released a few iWork apps and even a pretty comprehensive version of iMovie on the iOS platform. The iPad didn't even have a camera at launch, but now that there is a camera in the iPa
