I'm not a huge fan of the AMOLED screens either. Most of the current ones use a system called PenTile, which uses two sub-pixels per element rather than the usual three.
A standard LCD pixel has three sub-pixels: red, green, and blue.
A PenTile AMOLED pixel has either a double-wide red and a standard green sub-pixel, or a double-wide blue and a standard green sub-pixel. This works very well when displaying color images, such as photographs; but not as well when displaying text.
Because no one pixel contains all three colors, text loses some crispness; especially when compared to the Motorola Droid, which has a higher resolution to begin with.
AMOLED is great, but not the best option for everyone.
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