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AirDrop for simple file-sharing functionality
Often, there aren't any networked cloud or local storage solutions available, particularly in small- to medium-sized businesses. Many users are stuck resorting to emailing their files to one another. If there were multiple iOS-powered devices on the same network — in many cases, companies either go all in or all out with iPads — Apple could include its desktop OS X-based AirDrop file-sharing service in iOS 7, benefiting those who need to share company files between devices.
Longer PIN code for enhanced security
iOS currently provides two kinds of password security on the lock screen: A complex alphanumeric password, or a simple four-digit PIN code. In the case of the latter, most wannabe hackers are more than able to memorize a simple pattern, thus rendering the simple PIN code useless. And many owners don't want to use the longer alphanumeric password, because after a while it becomes tiresome when picking up their iPhone or iPad after only a few moments, in spite of company IT policies.
Enhancing the simple four-digit PIN code by a few extra blocks, such as seven or eight, would vastly improve security and simplicity for the end user. Everyone can remember a four-digit PIN code, but not everyone can memorize an eight-digit code.
Set default apps
After the Maps disaster, Apple apologized and recommended rival services to use in its replacement. Google Maps shot to the top of the Apple App Store within hours of its release. Along with this, there are plenty of alternative apps for Apple's own in-built features, not limited to maps, browsers, and email clients.
Apple can't control the monopoly on this anymor, and should instead embrace its own ever-expanding App Store by allowing users to set default applications. This makes even more sense with sideloaded apps provided by corporate customers.