Ultimate Photo Widget by ETH is a WordPress widget by electrictreehouse and KylinUntitled.
Intended to create a means of retrieving photos from various popular sites and displaying them in a stylish and uniform way. The Ulimate Photo Widget is currently capable of retrieving photos from Flickr, Tumblr, and Pinterest. There are currently four display styles: vertical, tiles, square tiles, and slideshow.
More info at: http://electrictreehouse.com/ultimate-photo-widget/a
Demo at: (http://kylinuntitled.com/ultimate-photo-widget/).