Here is my personal list of Pro / Cons:
+ Very high-quality finish
+ Very nice display
+ High processing speed
+ Good battery life
+ Very successful surface
+ Running absolutely clean and stable
+ Number of apps increases rapidly
+ Successful integration of social networks like Facebook (In stroke "contacts" you see the same news at Facebook bsp.)
- No own MP3 ringtones possible
- Battery life and connection information is not displayed constantly, but can be on Fintertipp Show
The iPhone is still the number 1 in the area of the most popular and most sought after smartphones. This is understandable, but it provides an excellent finish and a sophisticated operating concept which is also very intuitive and can be operated almost directly without instruction. The Win7 Phone includes in any case very close to the iPhone, and you can let them decide its flavor. I was the surface of Win7 phones more than the iPhone, and I just found the contacts range with continuous updating Facebook and their very successful display a touch better than the apple. This is of course a matter of taste, but with two smartphones, so the iPhone and Win7 can make up my mind not much wrong, you each get excellent equipment.