The idea is to be able to quantify the digital home experience a particular platform would offer, thus allowing end users to better compare systems based on overall experience. Honestly, the whole thing sounds a lot like AMD's True Performance Initiative that resulted in the model numbers we've come to live with for so long; it also sounds a lot like Intel's iComp ratings from years past.
The tool will give you a clear and detailed list of what tasks your PC can do perfect, relatively well and poorly.
More details about the software and photos can be found at AnandTech. Additionally, Intel also presented a game benchmark.