iPhone OS 3 - Wikipedia
Apple ha lanciato il test di iOS 17 Beta 4 per gli sviluppatori | Gagadget.com
iOS 4 è ora un'app per iPhone - Tom's Hardware
iOS 7.1 su iPhone 4, ci sono miglioramenti? - iPhone Italia
iOS 4.1 Game Center Compatible Games in One Place | Redmond Pie
An 18-Year-Old Developer Successfully Recreates iOS 4 as an iPhone App; Calls It 'Close to Pixel-Perfect'
How to Enable Emoji on iPhone iOS 4
Review: iOS 4 is a Welcome Evolution to the Best Smartphone Platform | Cult of Mac
Ars reviews iOS 4: what's new, notable, and what needs work | Ars Technica
how to downgrade an iPhone 4 to iOS 4! - YouTube
First Look: Apple's iOS 4 for iPhone, iPod touch | AppleInsider
iOS 4 | Apple Wiki | Fandom
Hands on iPhone 4 and the iOS 4 (iPhone OS 4) - YouTube
iOS 4 Features: MultiTasking, Folders, and Much More - MacRumors
Apple iPhone 3G - 16GB - Black Original IOS 4 (GSM) | eBay
iOS 4 - Wikipedia
Apple iPhone 4 Smartphone 8,9 cm (3,5 pollici) Touchscreen Display, fotocamera 5 Megapixel, WiFi, UMTS, Unlocked, iOS 7 senza blocco : Amazon.it: Elettronica
Flashback: iOS 4 adds multitasking, FaceTime and other important features - GSMArena.com news
Apple iPhone 4 - Scheda Tecnica
The evolution of iOS | Computerworld
Come Ripristinare l'iPhone 4/4s alle Impostazioni di Fabbrica con iTunes?
File:IOS 4 logo.png - Wikipedia
Flashback: iOS 4 adds multitasking, FaceTime and other important features - GSMArena.com news
iOS 4 review | iMore
Rivestire il proprio iPhone con iOS 4 è possibile grazie un'app dettagliatamente realizzata | SmartWorld
