SonicPics is an intriguing US $2.99 app that allows you to make a slide presentation and then narrate it, all on your iPhone, iPad or iPod touch. That's quite a lot of functionality that usually takes a lot more hardware.
Take your photos off your camera roll and select them inside SonicPics. Get them in the order you want. Then hit the record button and start narrating. You swipe to the next picture to control the sync. You can swap images around, but then you have to re-do the narration.
When you are satisfied, the presentation needs to be rendered, and then it can be emailed, saved to your camera roll, or uploaded to YouTube. The resulting file can run up to 60 minutes duration, if you have the space on your device. You can also sel