Thanks everyone for your thoughts! Truly valuable! This is the first phone I've designed so I will be gleaning quite a bit!
I've upload some boring orthographic views (but rendered in perspective) to better explain the form, and thinness.
Profile:
I REALLY wanted physical buttons (I won't rant here) and reversing the profile with this design would require them. Would they be awesome touch keys on rounded glass? YES!
...but they'd still be touch keys the you trigger accidentally!
Also, yes the edge is in you hand, it is chamfered and rounded. More notably the top and bottom corners have large rounds to 22 degree slope. Perhaps it's a bit the opposite of Lumias with the sharp corner in your palm and soft rounds on the finger tips. I just held my buddies iPhone4 and it is more comfortable with all it's edges, and that nice round in your palm. I'd have to get a model made to know for sure >_<
Windows Logo:
Well I used to hate it, but after reading notes from the designer and understanding it, I can respect it. HOWEVER a logo/icon in perspective is a very strong visual element. Too strong I thought for the front of the screen (note the home icon).
The logo is oriented for taking photos! When placing it again, the perspective was so strong that there wasn't enough visual space in the expect orientation. Plus this completely broke the symmetry of the back. I was hesitant about this decision at first, but it has really grown on me! ^_^
QUESTION: Screen size? What is the perfect size?
I have yet to find the perfect man-bag to house these trending BIG( > 4.0) screens.
(You show see all these Korean girls with both hands on their tablet phones! I don't get it)