TechwareLabs has published an editorial about BTX vs ATX.

BTX was the long awaited follow-up to ATX and was to bring a significant increase in performance as well as being an overall better design. So where is BTX today and why don't we see it more? We take a look at what BTX is and compare it to the older design of ATX which we still use today. We attempt to answer the question: Is BTX doomed?

BTX vs ATX: Is BTX Doomed?