Instagram is the massively popular photo-sharing social network that's garnered over 25 million users, and up until this point, it's only been available for iPhone, iPad, and iPod touch users. That changes today. Instagram for Android works on any Android device running version 2.2 or higher, as long as they support OpenGL ES 2. Similar to the iOS version, you can share your Instagram posts to Twitter, Facebook, Tumblr, and Foursquare. Soon, Flickr will be an option as well.
You can download Instagram for Android right now from Google Play, completely free.