Dblcam is a new free iOS app that simultaneously captures images with the front- and rear cameras of your iPhone. The app by developers Social Print Studio then combines the two pictures to a collage. Self portrait/scenery combinations are the most obvious results to come out of this process but some users are using Dblcam in a more creative way. Read more about the app and check out some sample images at connect.dpreview.com
News: Digital Photography Review (dpreview.com)