So what progress, if any, has been made on the mysterious discoloration of white MacBooks?

The weird yellow-brown ’stains’ were reported a few weeks ago. Pics appeared on Flickr, a discussion began on the Apple forums (sadly, this was closed by the moderators after a few days worth of posts), and a poll at our esteemed colleagues TUAW suggested that the problem was not isolated.

More recently there have been reports that Apple is now acknowledging this problem and affected computers returned to the mothership (or a nearby Apple Store) will be replaced or fixed up with new casing parts. But those are merely reports, I’ve seen nothing ‘official’ to back this up.

Is your white MacBook unexpectedly dirty? Have you joined the protestors at StainedBook?

This is one of those occasions when Apple’s well-oiled PR machine could do with being a bit more responsive. There’s clearly a problem here, even if its limited to a small number of machines. Instead of stamping out discussion of it on the forums and remaining publicly silent, Apple would be more highly regarded by all concerned if they simply acknowledged the complaints and said they’d look into it.