Unfortunately, there are signs that Apple is headed down a questionable path for its design choices. In his press event announcing the iMac, Apple chief executive Steve Jobs claimed that customers "loved" glossy displays; we respectfully disagree. The benefits it provides are useful primarily under controlled lighting and for marketing the system in a store. If your home has bright spot lighting that can't be moved or you're a professional who has to judge color accuracy on the fly, the gloss could be troublesome and a potential deal-breaker. Apple should have at least offered matte screens on some models or as a custom option.
http://www.appleinsider.com/articles....html&page= 3