Apparently, several Apple users are reporting in forums that the screen in the unibody MacBooks has been quietly upgraded to MacBook Air standards, offering noticeably better quality than older units. It all started last April.
Although the photo is not that good, you can notice the difference here. On the left you have the older screen. According to these users, the new machines have a wider view angle and better blacks. The unibody Macbook 13 had an LG Philips screen, but it looks like the latest boxes are coming out of the factory with a 13.3-inch glossy AU Optronics screen similar to the the one found in the MacBook Air. [Notebook Review Forums and MacRumors Forums via ComputerWorld]