Is the iphone going to have the same docking connection as the ipod by that i mean would i be able to use an iphone with my ihome or car adapter?

Also how scratch resistent is the screen going to be?

its probably going to be an easily scratchble screen
my guees is yes, considering its made by th same company

As far as i know it will be the same.
donno about the scratches. but im sure it will be alot better than an ipod. but still not like a normal phone.
hope this helped

bluetooth for normal cellphone -> car connections.
ipod doc for music & charging.

Scratching will be less... Apple is using a new surface!