I have the new prada phone and the new iphone will probably have the same problems this one has.
It will get a lot of scratches. you can not avoid this no matter how careful you are.
Also with a touchscreen you always need 2 hands to write emails or text messages, there is no way doing this with 1 hand really and you will always have to look at the screen as you are never sure if the phone accepted your "click" or not - unless you turn the sound on for the keys - which i find horrible.
So driving and writing = dangerous - even finding a number to dial can be hard when you are elsewhere occupied.
These things are major turn offs for me unfortunately.