Por un escritor de hombre misterioso
Usability, iOS 5 and Siri. Beyond the identical exterior lies the hard work that Apple put forth on the inside. An upgraded processor, an improved antenna and camera. The other big story
Review: iOS 6 gets the spit and polish treatment
making an iPhone 4 usable in 2022!
What can you say about iPhone 4s? What's good and bad about it? - Quora
Review: Apple iPhone 4S for AT&T (Phone Scoop)
iOS 5 includes Siri 'intelligent assistant' voice-control,dictation -- for iPhone 4S only - The Verge
Apple iPhone 4S review: Fast 4ward: Siri, iCloud, iCloud apps, iCloud sync, iCloud Mail, iTunes Match
iOS 5 and iPhone 4S review roundup
What versions of iOS run on iPhone 4s? - Quora
iPhone 4S Review
iPhone 4S still on iOS 5 - Review
iOS 6 review - The Verge
Siri - Apple iPhone 4S: Thoroughly Reviewed
Apple iOS 7 review: Massive makeover makes iOS feel new again - CNET
15 years of iOS: Let's take a walk down memory lane