Like anything, the improvements will come along and different materials will be incorporated. I've been a Mac user since the early 90's. Performa, G3, G4, G5 and an intel mini (my least favorite) From a design standpoint I feel they are far superior. To me they seem engineered for the future, not just the present. Wireless, firewire, etc. all before the PC world thought folks needed it.
Those who have the iPhone that I know are amazed at its features and design. Insurance is a great idea for phones and ipods. Gravity will not be ignored.
Jorge, I hope you can get your screen or phone replaced without too much bother. Best of luck to you, cutting edge man!