I just got an email, tonight, about a new Instagram app called Gramory. It's so awesome that I had to write up a quick review before heading to bed. Seriously. If you use Instgram, you want Gramory. It rocks. It's free.
http://www.imore.com/2012/03/30/experience-instagram-gramory-iphone/
http://www.imore.com/2012/03/30/experience-instagram-gramory-iphone/