Cooliris is an iPad and iPhone app through which you can connect to your various social media and cloud drives. Once connected, you can browse through the photos available through them, with an option of liking, sharing, and saving the photos you like.
Cooliris also comes with a unique “Groups” feature. Through it, you can create a group with how ever many members you want and share picture and text posts with them.
See Cooliris in action: http://www.youtube.com/watch?v=mJ5zGLlQWS8&list=PLDm6kNfcdINZuiSRhMSxF9i9CFqo-W2v1&feature=c4-overview-vl
Available FREE on iTunes: itunes.apple.com/us/app/cooliris/id294479487?mt=8