Apple asked early iPhone 5 buyers: "What one thing would you add to or change about the iPhone?".
Here's their response:
1. Longer battery life
2. Improve built-in Maps
3. Bigger screen
4. Unhappy with switch to Lightning
5. Ability to customize the look and function of phone
6. Improve Siri functionality
7. More durable/less fragile
Notably, internal Apple analysis determined that screen size and price were the reasons for the iPhone's slowed growth rate.
[via @jyarow] [via Dwayne]