I am not sure if an app like this currently exists or not, but I will describe it anyway. I am looking for an app that can browse through a large amount of high resolution images. These images are copied over to the Touch directly via USB/SSH Total size of all images may be in the hundreds of megabytes (ie. there are a lot of images) The app needs to have a scrollable list showing just the image filenames. A-Z sidebar scrolling would be highly desirable. A scrollable thumbnail list would be highly desirable but not essential. When viewing an individual image, an option to show the filename somewhere small at the top would be highly desirable. Apart from sorting by filename, an option to sort by Date Modified would also be highly desirable. Needs to have the standard pinch-zoom feature while viewing individual images. I don't want to use the Photos app because the images get modified by iTunes, and it also doesn't appear to have any support for filenames. So far I have tried 3 different solutions: MobileFinder + MobilePreview Finder just crashes if there are more than 10-20 images in a directory. iComic This is great for viewing individual images. Zooming and moving between images in slide-show type format is great. Unfortunately this app will crash when scrolling through a large list of images. Also, it lacks the A-Z sidebar scroller (I am not sure how difficult this is to implement). phpPod Thumbnail preview feature here is nice. I would have liked to have the filenames displayed under the thumbnails in small text. Unfortunately this app also crashes when faced with a large amount of images. Also, there doesn't appear to be a way to scroll through the image filenames rather than thumbnails.