The post I responded to called a phone "cheap plastic" as if this was somehow unusual, and a fatal flaw, yet my iPhone has a plastic back and seems to be doing fine in durability and popularity.
I have the original iPhone 2g covered in dents and scratches (from the previous owner mainly, it's second hand) yet I know it's never gonna badly dent, and will never crack from regular drops and general wear and tear.
Incidentally, the iPhone 4g has benn drop tested, and the results aren't good. So much for Apple's much vaunted durability:
http://www.ismashphone.com/2010/06/shattered-like-a-glass-go...
And that's all premised on the fact that this plastic casing is even cheap, which we clearly don't actually know. How do we know they didn't try and get fancy with their material selection or manufacturing (like Apple often does) and then blow it (like Apple often does). Did the plastic in the G4 cube have cracks because it was "cheap"? Did the white MacBook suffer discoloration because the plastic was "cheap"? No, someone or something messed up and even with fancy engineers and fancy plastics it wasn't caught in time. Assuming the Droid even has such issues, I'd guess the same cause.
