I thought the MBA screen was OK, at least compared to the glossy MBP screens. I have a unibody Macbook and really hate the reflections, but I have not been able to find an anti-glare option that doesn't have any reviews mentioning colour speckles as you move your head. That is something I encountered when I put an anti-reflective screen on my first iPhone.
A moth eye film would be ideal, but they do not appear to be available for after-market fitment. The only place I have seen them on the market is on a Philips TV. A few other options were shown at CES this year, but no sign of anything on the market yet.