Social bookmarking service Pinterest today announced a new app for Android and iOS in a move to appeal to an even larger audience. If you’ve not used the service, it’s like a image-based social bookmarking system. You “pin” websites to your own Pinterest account, then share the pinned bookmarks via categorical lists. It has a heavy Facebook and Twitter integration as well, and last week it opened the doors to the general public, not requiring an invite any longer.





