color temperature

Here's an idea for an iPhone app project with a guaranteed user base: Build a tool for adjusting the display's color temperature.

It's not officially possible, according to Apple, but don't let that stop you-- there's evidence that it can in fact be done.

Because the day you purchased your new iPhone 3G, you were running an outdated version of the operating system.

And after updating (to v.5A347), you might notice that the screen color will be slightly less yellow, but still not as starkly white as the original iPhone.