iSupply has published a teardown analysis of the HTC Droid Incredible, saying that the phone costs $163 to make. They say that the AMOLED display (Samsung's 3.7" 480x800) costs $31.20. This is rather strange, as back in January, they claimed that the same display, used in Google's Nexus-One phone costs $23.5.
So maybe the costs went up (because of Samsung's short supply). Back in January, iSupply estimated that the Touch Interface costs $17.75. So maybe the cost of both the touch and the AMOLED went down, and now they cost $31.2 together?