The iPhone 5 concept by Zeki Ozek suggests more benefit in a %23 smaller iPhone. By using a fingerprint reader instead of home button you can unlock your phone with a finger swipe. Assign your fingers for apps. You can assign your little finger for twitter, middle finger for mail.

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With a double up-down swipe you can open background working apps. ( When you want to close background apps, the first icon will be close all). The fingerprint can be used as password when needed.

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When you are reading twitter, you can use back touch wheel to roll the page down or up with just a finger swipe at the back of iPhone. You can engrave your name to your phone which does not use any sim card. By the volume buttons on the sides, iPhone 5 behaves just like a gaming concole.
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