I just hope the "polycarbonate" shell with its curvy-ness is nothing like the cheap build of my Palm Pre.
The One X is a high quality polycarbonate unibody. The SGS3 is an unknown quality shell.
I know where you're coming from....I was a Palm Pre owner before.... OREO!! That thing was just terrible, but I think most of the cheapness came from that crappy slider mechanism and the way how the "mirror" in the back of the phone when opened scratched so easily.