Kotaku has a story up on a man by the name of Roger Ehrenberg. He has analyzed the console/gaming business over at Microsoft and believes that the Xbox and its younger, sleeker brother the Xbox 360 have proven to be complete and total economic disasters for the biggest company on Earth.

Roger Ehrenberg of Information Arbitage takes a look at the financial black hole that is the Xbox and the Xbox 360, part of Microsoft's Home and Entertainment division. The H&E group, which also includes the Zune, IPTV and other products, has produced $5.4 billion in operating losses over a five year period. Ehrenberg doesn't see the 360 turning the group's fortunes around short of a "tectonic transformation."

Calling himself a personal fan of the console-he uses "awesome" and "rocking" to describe the 360-Ehernberg looks at the Xbox business, from an investment standpoint, as nothing short of a "disastrous endeavor" for the company and paints a bleak picture of the Xbox 360's future based on its below-original Xbox performance in Japan

It's interesting for the math-minded among us. Take a read on Kotaku.