Title says it all. I installed it last night and it add ALOT to the camera app. The pano sphere feature works pretty dang good. you can go side ways like a normal panorama PLUS you can go up and down(when you try it it looks jacked up until the phone processes it). Now instead of a straight pano....you can go WIIIIIIIIIIIIIIIIIIDE.
On the post processing side of things. You can finally change you exposure, contrast, vibrance. Adjust curves(which is awesome), push and pull shadows, adjust hue and saturation.
All in all....much much much better vs the 4.1 stock camera.