It’s a rule I always believe which I’m quite sure alot of people would agree: “Never be an early adopter of a gadget”.
Anyway. According to an Engadget post, some early lucky iPhone 4 owners have this annoying yellow spot on the right bottom corner. Not so lucky after all.
So much for an advanced gadget to be bad in quality… Then again, every company might have some quality control issues (Including my N900 and the mic issue).