7. Gorilla Glass 2
With a bigger screen to play with, its going to need to be tougher. It breaks my heart to see an iPhone with a cracked screen. It makes me want to shake the owner and yell at them to take more care of their phone. But if youre going to have glass panels on the back and front of your phone, then accidents are going to happen. The best option to avoid such things is Gorilla Glass 2. Its strong, it's flexible, its scratch and damage resistant, and its perfect for those clumsy-handed phone users.
6. An 'Undo' Feature
The other week I was going through my texts as you do, but with a slight slip of the finger, I accidently deleted an entire message thread from a good friend dating back to April 2011. All gone in an instant, and there were some cracking anecdotes in that. So this is more of a personal plea than anything. An undo button would be so simple to do, or at the very least, a Trash widget where everything you delete is moved there before you decide to completely remove from the phone.