Unified Marble user interface to appear in Mac OS X Snow Leopard?

Apple’s new version of Mac OS X, Snow Leopard, promises to bring some exciting overhauls to the back end of the Mac OS as we know it today. However, on top of all of this back end stuff, it now also appears as if Snow Leopard will sport a brand new interface across all of the Apple apps, giving Mac OS X a completely unified look. This user interface, which Apple has internally codenamed Marble, will bring about some small changes to the original Aqua theme that we can see in applications like iTunes.