Piik is an Android based Network Traffic Image Extractor. It works very similar to driftnet on linux.
Piik homepage: http://piik.co/
Hacked Existence Project Page: http://hackedexistence.com/project-piik.html
Piik begins its attack by performing an ARP spoof to redirect all network traffic through the android device. It then extracts and displays images on the android device in vivo time as they fly across the network. When you tap on an image, Piik will show the image source and the host that loaded the image.