With the release of the Google play edition cellphones, such as a stock galaxy s4 and a stock HTC One. Users noticed that the camera was a little different than the other 4.2.2 devices. So the took it out and lo and behold! It's usable, without root, on other Android devices! It is really simple. Just go int your phones settings. Go into security, then check the box for unknown sources. Then you just go to the link below and install the camera! All done! Now you have photospheres and other stock awesomeness! Because before now it was impossible to use photospheres except on stock or rooted.
Don't forget, press your volume rocker to snap a picture.