This is an odd one, and I don't see it covered in here anywhere yet. I recently added some full size photos to my 'camera roll' that were saved from Flickr. I'm guessing they were >1MB in size. When viewed in the 'Photos' section of the phone under 'camera roll', the iPhone has to process the images so they will display properly on the phone's screen (they start blurry and then become clear after processing). Problem is a couple of them seem to crash the app. They remain blurry and do not process correctly. Then when I back out of the app and go back in, the 'camera roll' is no longer there. It's gone! It reappears if I reboot or reset, but still won't process and show the image correctly. I get the same problem over and over. Is anyone aware of size limitations in the photo app or anything that will crash it?