The biggest overhaul in iOS history is upon us, and brings about much new functionality and a brand new look. Here's what you should follow to get iOS 7 on your Apple iPhone 4, iPhone 4s or iPhone 5, your iPad 2, iPad 3 (new iPad), iPad 4, or iPad mini tablets, as well as your iPod touch 5th generation media player.
You can then also sync your Camera Roll with iTunes, so as you don't slow the iCloud storage service, delete previous iCloud backups from your phone, and go deeper using the Manage Storage option, telling each individual app to sync or not with iCloud, like in the screenshot on the right.
To check if iCloud backups are enabled, go to Settings > iCloud > Storage & Backup, and make sure the iCloud Backup slide is at the ON position. You can also force a manual backup right now by going to Settings > iCloud > Storage & Backup and tapping the large Back Up Now button at the bottom of the display.
Your settings, including application ones and in-app purchases, as well as Messages, Camera Roll, documents, saved games, and other important data can all be backed up in iTunes and restored manually if something goes awry:
For music, movies, TV shows, apps, and books you have purchased - these stay in iCloud and don't count towards your 5 GB of free storage quota, so you can use the storage to back up your mail, documents and recent media that hasn't been synced to your computer. These backups will run automatically when your device is on, plugged in and locked, and will go over Wi-Fi connection, so you don't really need to do much here. Exceptions?
Bear in mind that iCloud wouldn't back up music, movies, and TV shows not purchased from the iTunes Store, as well as podcasts and audio books, plus all the photos that were originally synced from your computer.
If, for some reason, you need to downgrade to the previous versions of iOS, you can use programs like TinyUmbrella (Mac / Windows) or iFaith (Windows), in case you are of the hacking and jailbreaking types, and if you are, you probably know already how to save your SHSH blobs with these programs, so you can roll back to undamaged states.
You can either get to iOS 7 from whichever version you are running on your device through an over-the-air (OTA) update, or the good old iTunes hookup. OTA is pretty self-explanatory, as the device prompts you there is a new version of iOS, and you just have to tap on, following the instructions to get the upgrade. If you are the more Nervous Nelly type, you can keep hitting Settings > General > Software update, and you might just get lucky like Pharell and install it amongst the first on the block.
Just click through the Download&Update button, and you will have your iPhone, iPad or iPod touch brought up to iOS 7 in no time.
Finally, we'd advise you somewhat counterintuitively to wait a little bit with the iOS 7 update. There have been occurrences when Apple's activation servers go down on account of the monster amount of immediate requests, and if you hit that button at the second the prompts appear, you might be left with a device that has no restoring in sight until the servers get up again.
Thus it'd be wise not to jump the gun immediately, but do it in the evening at home, or the next morning, depending on your country, when the initial rush has watered down. For a full list of when the iOS 7 update will go live in different time zones, check out our iOS 7 release date and time schedule.