There is one: Device Removal. Even in the latest version of Mac, OS X 10.6, we need to diligently 'eject' any storage device before removing it from the computer. Wait a second, that was one of the huge improvements (according to Microsoft) when they realized true plug-and-play in Windows, probably back several years ago. In Mac, we still have to eject not only the storage device but also the disc image (that pseudo-device that is created every time we install an application in Mac).
Why? Considering their manic-obsessive attention to details, Apple Computer certainly knows this inconvenience. Why?