While i OS 9 has been available as a public beta for the past few months, Apple plans on making it publicly .
Once available, anyone with a supported i OS device (more on that in a minute) can download and install the OS.
The inability for owners of the fourth-generation i Pod touch to upgrade to i OS 7 is similar to the move Apple made last year, when it released i OS 6.
Apple declined to make a version of that upgrade for the original i Pad, a device that was less than three years old.
This both frees up precious storage space and declutters your home screen.