Here is what I am talking about with form factor...
Phone Size - Phone size comparison made easy!
These are to scale, meaning they actual size if sat next to each other.
They didn't have the OV so I used a Wildfire which has the same size screen (overall size-wise it is in between the Wildfire and Iphone). The Apple has only 1/4in more. Look how big it looks compared to the Wildfire. And maybe it's just me, but it looks a bit dated and odd next to them.
Now compare the screen compared to the Evo 3d/Evo V. Yes, the Evo V is larger, but look how much larger that screen is! It's a much better use of space.