Joe Rossignol, MacRumors:

Apple this week acknowledged that MacBook Air models with Retina displays can exhibit anti-reflective coating issues, as indicated in a memo shared with Apple Authorized Service Providers and obtained by MacRumors.

“Retina displays on some MacBook, MacBook Air, and MacBook Pro computers can exhibit anti-reflective (AR) coating issues,” the memo states.

And:

Apple has a free repair program for the anti-reflective coating issue in place internally, but it has yet to add any MacBook Air models to its list of eligible models, despite mentioning it elsewhere in the documentation. However, with Apple at least acknowledging that the MacBook Air can exhibit the issue, customers may have a valid argument for at least a free in-warranty repair.

Follow the headline link for a picture that tells the story, shows what this “staining” looks like.

Also, this from John Gruber:

I have it on good authority that the MacBook Air, retina display or otherwise, is not covered by the repair program. Unclear to me is how widespread the problem is with Airs.

Also, also, this MacBook Air “Staingate” rollup page from Michael Tsai is worth a visit.