After some strange hiccups last night that saw distorted images, among other things, the white iPhone 4 has been removed entirely from the Apple Online Store. (Curiously, the white iPhone 4 is still shown on Apple's iPhone product gallery)
Seems a fitting way to cap off a week of drama that saw hints of the white iPhone 4 in the updated Apple Store app, Apple announce they were delaying it until spring 2011, and BGR rumoring that it might just be cancelled completely.
As to why the delays keep happening, we've heard everything from proximity sensor issues, light leaks, problems bonding the color to the glass, to the inability to match the home button to the faceplate.
My best guess at this point? It's the fifth Cylon and it just knew we were on to it.