Looking for a simple yet useful photo sharing application? Instagram, is photo sharing application and it's totally free. Now you can post your favorite photo, linked it to your profile, etc.
Snap a photo with your iPhone, iPad, or iPod touch, choose a filter to transform the look and feel, send to Facebook, Twitter or Flickr. Yes this app compatible with iPhone, iPad, and iPod touch require iOs 3.1.2 or later.
Download it free from iTunes.