You guys didn't read the (whole) article Tom linked to. I read the whole thing and it was quite enlightening. They're not damning of the screen at all, they're only interested in pointing out the fact and clearing up some possible reasons why other testers found what was previously reported.

The author owns a Nexus and quite likes it. He doesn't appear to have an inclination to switch to a different handset and in conclusion he's only disappointed that the screen's design/technical details weren't communicated at all in any spec sheet prior to purchasing.

I'm not sure this is an indication of what all OLED or AMOLED panels are or will be like, but the PenTile element arrangement is important to know about, especially for developers.