I do remember when there was an idea of a 'radio road show' collecting all the stories from people. As the Hawaiian community is very cautious as to how stories are documented, this would provide a viable way to collect contributions in a 'talk story' environment rather than more formal.
VoiceThread Mobile s a free app for the iPad, iPhone, and iPod Touch. Through the app users can create and comment on the go. Now you can snap a photo or capture a video with your iOS device and immediately start a VoiceThread project around that item. Or you could add that picture or video to an existing VoiceThread project.
VoiceThread Mobile could be a great app for recording and reflecting on the sights and sounds of field trip. Take individuals on a walking tour of a historical district in a city and have them capture images that they then string together and discuss in a VoiceThread project that starts in the field and is finished back where they started.