Well, as seen by the nexus/s gingerbread upgrades... The color temps can be adjusted by the manufacturer if they choose to do so. If all you really care about is that the screen pops at you then why are you even asking here. Go ahead and get yourself the older generation android phones man. They're still plenty sufficient for anything you're probably going to do anyway. But if you get that phone at around the same price, then ask yourself if the price is enough to justify the fact that you just care that the screen pops at you. Personally I wouldn't pay the same price for a phone that is lower spec'd just because the screen is bigger or has nicer color tones but you made it clear that you care more about that so all power to you. Be decisive.