So, you got a shiny new iPhone 4S, and with its spiffy new camera, you're itching to dabble in some Dada-esque picture composition. But, what if you're an on-the-go type with no time to fix your pics on a laptop? Worry not photog friend, Artifact is here to let you photoshop right on your phone and give Adobe some competition. The app works on any device running iOS 4.1 or later, and lets you splice photos together with the greatest of ease. Once you've got two images to combine, simply open one to create a
