A recently released free iPhone app called Shadow Puppet allow you to quickly take several photos from your camera roll and overlay a narration. While most suitable for How-To videos, the below video shows some photos from a recent Thomas Dolby The Invisible Lighthouse show with a voiceover. The unscripted video was done in 30 seconds out on the sidewalk and picked up some street noise.
The simplicity and zero production time leads one to believe people will create more of these video explain things through pictures and voiceover.
