PhotoPresenter from Boinx Software is a new US$0.99 app that lets you display your photos from an iOS device to a big screen via a cable or using AirPlay to an AppleTV.
At first glance, this seems a silly expenditure, since you can use a cable or AirPlay to do that now, but PhotoPresenter has one very compelling feature in that you can display the photos in any order, rather than having to create a slideshow in advance. When you tap on any photo on your iPhone or iPad, it's displayed until you tap on another one. They can be in the order you choose. While your display device shows your photo full screen, you see all your photo libraries and can move between them while your last photo stays on displ