That kind of flexing and creaking really drive me up the wall too. Yeah its just a phone made of plastic which bends, but I need the damn thing to feel well put together too. It has to or I'll take it apart and insulate it with paper or whatever until it feels right. If RF or function wasnt affected, I would love to see a titanium Blackberry. Really rough looking like they dragged it from a car on the highway, but tight.
I also agree that if it bothers you too much, return it. No sense in being pissed about your phone when there are so many options these days.
Naked Wife is a man.