The Other

Joe recently upgraded his iPhone to the latest software, and it now says that he has 25 gigabytes of Other.
What’s Other? he thought
He looked this Other up on Apple’s support site, and they wanted him to completely reinstall his phone from a backup, and that’s a pain in the ass.
“Fine,” he said, plugging in the phone and telling iTunes to sync up.
The sync began, and his headphones began to tingle.
When the sync was over, Bob looked at the screen.
“25 gigabytes of Other? Again? Damn this stupid thing!”
He exchanged his iPhone for a Droid.